Home / 442,631.20-663,154.80-269,207.20

Finding the Fourth Proportional to 442,631.20, 663,154.80 and 269,207.20

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Solution

The fourth proportional to 442,631.20, 663,154.80 and 269,207.20 is: 403,329.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,631.20 : 663,154.80 = 269,207.20 : x
  2. Step 2: Convert to fraction form
    442,631.20/663,154.80 = 269,207.20/x
  3. Step 3: Cross multiply
    442,631.20x = 663,154.80 × 269,207.20
  4. Step 4: Simplify right side
    442,631.20x = 178,526,046,874.56
  5. Step 5: Solve for x
    x = 178,526,046,874.56/442,631.20
  6. Step 6: Final answer
    x = 403,329.11

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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.