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Finding the Fourth Proportional to 337,820.90, 506,693.61 and 85,101.30

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Solution

The fourth proportional to 337,820.90, 506,693.61 and 85,101.30 is: 127,642.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,820.90 : 506,693.61 = 85,101.30 : x
  2. Step 2: Convert to fraction form
    337,820.90/506,693.61 = 85,101.30/x
  3. Step 3: Cross multiply
    337,820.90x = 506,693.61 × 85,101.30
  4. Step 4: Simplify right side
    337,820.90x = 43,120,284,912.69
  5. Step 5: Solve for x
    x = 43,120,284,912.69/337,820.90
  6. Step 6: Final answer
    x = 127,642.44

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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.