Home / 442,941.39-664,517.93-143,422.29

Finding the Fourth Proportional to 442,941.39, 664,517.93 and 143,422.29

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Solution

The fourth proportional to 442,941.39, 664,517.93 and 143,422.29 is: 215,167.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,941.39 : 664,517.93 = 143,422.29 : x
  2. Step 2: Convert to fraction form
    442,941.39/664,517.93 = 143,422.29/x
  3. Step 3: Cross multiply
    442,941.39x = 664,517.93 × 143,422.29
  4. Step 4: Simplify right side
    442,941.39x = 95,306,682,549.55
  5. Step 5: Solve for x
    x = 95,306,682,549.55/442,941.39
  6. Step 6: Final answer
    x = 215,167.71

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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.