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Finding the Fourth Proportional to 387,263.67, 581,122.86 and 162,606.83

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Solution

The fourth proportional to 387,263.67, 581,122.86 and 162,606.83 is: 244,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,263.67 : 581,122.86 = 162,606.83 : x
  2. Step 2: Convert to fraction form
    387,263.67/581,122.86 = 162,606.83/x
  3. Step 3: Cross multiply
    387,263.67x = 581,122.86 × 162,606.83
  4. Step 4: Simplify right side
    387,263.67x = 94,494,543,199.52
  5. Step 5: Solve for x
    x = 94,494,543,199.52/387,263.67
  6. Step 6: Final answer
    x = 244,005.70

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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.