Home / 442,861.38-664,397.52-143,342.02

Finding the Fourth Proportional to 442,861.38, 664,397.52 and 143,342.02

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Solution

The fourth proportional to 442,861.38, 664,397.52 and 143,342.02 is: 215,047.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,861.38 : 664,397.52 = 143,342.02 : x
  2. Step 2: Convert to fraction form
    442,861.38/664,397.52 = 143,342.02/x
  3. Step 3: Cross multiply
    442,861.38x = 664,397.52 × 143,342.02
  4. Step 4: Simplify right side
    442,861.38x = 95,236,082,599.79
  5. Step 5: Solve for x
    x = 95,236,082,599.79/442,861.38
  6. Step 6: Final answer
    x = 215,047.16

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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.