Home / 437,628.06-656,442.18-138,131.97

Finding the Fourth Proportional to 437,628.06, 656,442.18 and 138,131.97

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Solution

The fourth proportional to 437,628.06, 656,442.18 and 138,131.97 is: 207,197.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,628.06 : 656,442.18 = 138,131.97 : x
  2. Step 2: Convert to fraction form
    437,628.06/656,442.18 = 138,131.97/x
  3. Step 3: Cross multiply
    437,628.06x = 656,442.18 × 138,131.97
  4. Step 4: Simplify right side
    437,628.06x = 90,675,651,514.49
  5. Step 5: Solve for x
    x = 90,675,651,514.49/437,628.06
  6. Step 6: Final answer
    x = 207,197.98

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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.