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Finding the Fourth Proportional to 440,138.97, 660,253.20 and 151,913.10

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Solution

The fourth proportional to 440,138.97, 660,253.20 and 151,913.10 is: 227,885.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,138.97 : 660,253.20 = 151,913.10 : x
  2. Step 2: Convert to fraction form
    440,138.97/660,253.20 = 151,913.10/x
  3. Step 3: Cross multiply
    440,138.97x = 660,253.20 × 151,913.10
  4. Step 4: Simplify right side
    440,138.97x = 100,301,110,396.92
  5. Step 5: Solve for x
    x = 100,301,110,396.92/440,138.97
  6. Step 6: Final answer
    x = 227,885.09

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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.