Home / 398,270.12-597,275.98-131,959.13

Finding the Fourth Proportional to 398,270.12, 597,275.98 and 131,959.13

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Solution

The fourth proportional to 398,270.12, 597,275.98 and 131,959.13 is: 197,895.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,270.12 : 597,275.98 = 131,959.13 : x
  2. Step 2: Convert to fraction form
    398,270.12/597,275.98 = 131,959.13/x
  3. Step 3: Cross multiply
    398,270.12x = 597,275.98 × 131,959.13
  4. Step 4: Simplify right side
    398,270.12x = 78,816,015,374.42
  5. Step 5: Solve for x
    x = 78,816,015,374.42/398,270.12
  6. Step 6: Final answer
    x = 197,895.88

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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.