Home / 231,327.44-319,177.80-130,711.76

Finding the Fourth Proportional to 231,327.44, 319,177.80 and 130,711.76

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Solution

The fourth proportional to 231,327.44, 319,177.80 and 130,711.76 is: 180,351.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,327.44 : 319,177.80 = 130,711.76 : x
  2. Step 2: Convert to fraction form
    231,327.44/319,177.80 = 130,711.76/x
  3. Step 3: Cross multiply
    231,327.44x = 319,177.80 × 130,711.76
  4. Step 4: Simplify right side
    231,327.44x = 41,720,291,990.93
  5. Step 5: Solve for x
    x = 41,720,291,990.93/231,327.44
  6. Step 6: Final answer
    x = 180,351.68

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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.