Home / 331,695.20-497,735.56-139,555.52

Finding the Fourth Proportional to 331,695.20, 497,735.56 and 139,555.52

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Solution

The fourth proportional to 331,695.20, 497,735.56 and 139,555.52 is: 209,414.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,695.20 : 497,735.56 = 139,555.52 : x
  2. Step 2: Convert to fraction form
    331,695.20/497,735.56 = 139,555.52/x
  3. Step 3: Cross multiply
    331,695.20x = 497,735.56 × 139,555.52
  4. Step 4: Simplify right side
    331,695.20x = 69,461,744,898.29
  5. Step 5: Solve for x
    x = 69,461,744,898.29/331,695.20
  6. Step 6: Final answer
    x = 209,414.38

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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.