Home / 240,151.53-331,387.34-138,149.85

Finding the Fourth Proportional to 240,151.53, 331,387.34 and 138,149.85

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Solution

The fourth proportional to 240,151.53, 331,387.34 and 138,149.85 is: 190,634.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,151.53 : 331,387.34 = 138,149.85 : x
  2. Step 2: Convert to fraction form
    240,151.53/331,387.34 = 138,149.85/x
  3. Step 3: Cross multiply
    240,151.53x = 331,387.34 × 138,149.85
  4. Step 4: Simplify right side
    240,151.53x = 45,781,110,622.15
  5. Step 5: Solve for x
    x = 45,781,110,622.15/240,151.53
  6. Step 6: Final answer
    x = 190,634.27

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1.5x scale

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.