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Finding the Fourth Proportional to 343,892.74, 515,984.92 and 166,531.90

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Solution

The fourth proportional to 343,892.74, 515,984.92 and 166,531.90 is: 249,868.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,892.74 : 515,984.92 = 166,531.90 : x
  2. Step 2: Convert to fraction form
    343,892.74/515,984.92 = 166,531.90/x
  3. Step 3: Cross multiply
    343,892.74x = 515,984.92 × 166,531.90
  4. Step 4: Simplify right side
    343,892.74x = 85,927,949,098.95
  5. Step 5: Solve for x
    x = 85,927,949,098.95/343,892.74
  6. Step 6: Final answer
    x = 249,868.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.