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Finding the Fourth Proportional to 379,951.53, 524,331.20 and 207,866.38

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Solution

The fourth proportional to 379,951.53, 524,331.20 and 207,866.38 is: 286,854.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,951.53 : 524,331.20 = 207,866.38 : x
  2. Step 2: Convert to fraction form
    379,951.53/524,331.20 = 207,866.38/x
  3. Step 3: Cross multiply
    379,951.53x = 524,331.20 × 207,866.38
  4. Step 4: Simplify right side
    379,951.53x = 108,990,827,673.89
  5. Step 5: Solve for x
    x = 108,990,827,673.89/379,951.53
  6. Step 6: Final answer
    x = 286,854.56

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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.