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Finding the Fourth Proportional to 442,860.89, 664,396.77 and 143,341.52

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Solution

The fourth proportional to 442,860.89, 664,396.77 and 143,341.52 is: 215,046.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,860.89 : 664,396.77 = 143,341.52 : x
  2. Step 2: Convert to fraction form
    442,860.89/664,396.77 = 143,341.52/x
  3. Step 3: Cross multiply
    442,860.89x = 664,396.77 × 143,341.52
  4. Step 4: Simplify right side
    442,860.89x = 95,235,639,572.91
  5. Step 5: Solve for x
    x = 95,235,639,572.91/442,860.89
  6. Step 6: Final answer
    x = 215,046.40

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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.