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Finding the Fourth Proportional to 310,117.92, 427,398.78 and 242,099.52

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Solution

The fourth proportional to 310,117.92, 427,398.78 and 242,099.52 is: 333,657.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,117.92 : 427,398.78 = 242,099.52 : x
  2. Step 2: Convert to fraction form
    310,117.92/427,398.78 = 242,099.52/x
  3. Step 3: Cross multiply
    310,117.92x = 427,398.78 × 242,099.52
  4. Step 4: Simplify right side
    310,117.92x = 103,473,039,486.59
  5. Step 5: Solve for x
    x = 103,473,039,486.59/310,117.92
  6. Step 6: Final answer
    x = 333,657.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.