Home / 442,979.30-664,566.15-143,408.90

Finding the Fourth Proportional to 442,979.30, 664,566.15 and 143,408.90

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Solution

The fourth proportional to 442,979.30, 664,566.15 and 143,408.90 is: 215,144.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,979.30 : 664,566.15 = 143,408.90 : x
  2. Step 2: Convert to fraction form
    442,979.30/664,566.15 = 143,408.90/x
  3. Step 3: Cross multiply
    442,979.30x = 664,566.15 × 143,408.90
  4. Step 4: Simplify right side
    442,979.30x = 95,304,700,548.74
  5. Step 5: Solve for x
    x = 95,304,700,548.74/442,979.30
  6. Step 6: Final answer
    x = 215,144.82

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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.