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Finding the Fourth Proportional to 385,754.57, 532,218.28 and 249,892.66

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Solution

The fourth proportional to 385,754.57, 532,218.28 and 249,892.66 is: 344,772.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,754.57 : 532,218.28 = 249,892.66 : x
  2. Step 2: Convert to fraction form
    385,754.57/532,218.28 = 249,892.66/x
  3. Step 3: Cross multiply
    385,754.57x = 532,218.28 × 249,892.66
  4. Step 4: Simplify right side
    385,754.57x = 132,997,437,779.27
  5. Step 5: Solve for x
    x = 132,997,437,779.27/385,754.57
  6. Step 6: Final answer
    x = 344,772.17

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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.