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Finding the Fourth Proportional to 284,487.39, 392,600.52 and 157,171.19

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Solution

The fourth proportional to 284,487.39, 392,600.52 and 157,171.19 is: 216,900.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,487.39 : 392,600.52 = 157,171.19 : x
  2. Step 2: Convert to fraction form
    284,487.39/392,600.52 = 157,171.19/x
  3. Step 3: Cross multiply
    284,487.39x = 392,600.52 × 157,171.19
  4. Step 4: Simplify right side
    284,487.39x = 61,705,488,960.02
  5. Step 5: Solve for x
    x = 61,705,488,960.02/284,487.39
  6. Step 6: Final answer
    x = 216,900.61

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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.