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Finding the Fourth Proportional to 352,331.71, 486,212.56 and 207,153.86

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Solution

The fourth proportional to 352,331.71, 486,212.56 and 207,153.86 is: 285,869.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,331.71 : 486,212.56 = 207,153.86 : x
  2. Step 2: Convert to fraction form
    352,331.71/486,212.56 = 207,153.86/x
  3. Step 3: Cross multiply
    352,331.71x = 486,212.56 × 207,153.86
  4. Step 4: Simplify right side
    352,331.71x = 100,720,805,635.53
  5. Step 5: Solve for x
    x = 100,720,805,635.53/352,331.71
  6. Step 6: Final answer
    x = 285,869.26

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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.