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Finding the Fourth Proportional to 440,082.20, 660,123.30 and 107,658.20

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Solution

The fourth proportional to 440,082.20, 660,123.30 and 107,658.20 is: 161,487.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,082.20 : 660,123.30 = 107,658.20 : x
  2. Step 2: Convert to fraction form
    440,082.20/660,123.30 = 107,658.20/x
  3. Step 3: Cross multiply
    440,082.20x = 660,123.30 × 107,658.20
  4. Step 4: Simplify right side
    440,082.20x = 71,067,686,256.06
  5. Step 5: Solve for x
    x = 71,067,686,256.06/440,082.20
  6. Step 6: Final answer
    x = 161,487.30

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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.