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Finding the Fourth Proportional to 494,757.20, 742,135.80 and 162,333.20

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Solution

The fourth proportional to 494,757.20, 742,135.80 and 162,333.20 is: 243,499.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,757.20 : 742,135.80 = 162,333.20 : x
  2. Step 2: Convert to fraction form
    494,757.20/742,135.80 = 162,333.20/x
  3. Step 3: Cross multiply
    494,757.20x = 742,135.80 × 162,333.20
  4. Step 4: Simplify right side
    494,757.20x = 120,473,279,248.56
  5. Step 5: Solve for x
    x = 120,473,279,248.56/494,757.20
  6. Step 6: Final answer
    x = 243,499.80

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Similar ratio
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1.5x scale

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.