Home / 240,581.90-331,966.02-138,587.43

Finding the Fourth Proportional to 240,581.90, 331,966.02 and 138,587.43

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Solution

The fourth proportional to 240,581.90, 331,966.02 and 138,587.43 is: 191,229.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,581.90 : 331,966.02 = 138,587.43 : x
  2. Step 2: Convert to fraction form
    240,581.90/331,966.02 = 138,587.43/x
  3. Step 3: Cross multiply
    240,581.90x = 331,966.02 × 138,587.43
  4. Step 4: Simplify right side
    240,581.90x = 46,006,317,559.13
  5. Step 5: Solve for x
    x = 46,006,317,559.13/240,581.90
  6. Step 6: Final answer
    x = 191,229.34

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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.