Home / 442,242.60-663,218.10-161,723.40

Finding the Fourth Proportional to 442,242.60, 663,218.10 and 161,723.40

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Solution

The fourth proportional to 442,242.60, 663,218.10 and 161,723.40 is: 242,531.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,242.60 : 663,218.10 = 161,723.40 : x
  2. Step 2: Convert to fraction form
    442,242.60/663,218.10 = 161,723.40/x
  3. Step 3: Cross multiply
    442,242.60x = 663,218.10 × 161,723.40
  4. Step 4: Simplify right side
    442,242.60x = 107,257,886,073.54
  5. Step 5: Solve for x
    x = 107,257,886,073.54/442,242.60
  6. Step 6: Final answer
    x = 242,531.78

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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.