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Finding the Fourth Proportional to 642,231.93, 963,483.17 and 242,863.86

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Solution

The fourth proportional to 642,231.93, 963,483.17 and 242,863.86 is: 364,346.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,231.93 : 963,483.17 = 242,863.86 : x
  2. Step 2: Convert to fraction form
    642,231.93/963,483.17 = 242,863.86/x
  3. Step 3: Cross multiply
    642,231.93x = 963,483.17 × 242,863.86
  4. Step 4: Simplify right side
    642,231.93x = 233,995,240,496.92
  5. Step 5: Solve for x
    x = 233,995,240,496.92/642,231.93
  6. Step 6: Final answer
    x = 364,346.94

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.