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Finding the Fourth Proportional to 437,143.96, 655,658.50 and 137,626.10

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Solution

The fourth proportional to 437,143.96, 655,658.50 and 137,626.10 is: 206,421.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,143.96 : 655,658.50 = 137,626.10 : x
  2. Step 2: Convert to fraction form
    437,143.96/655,658.50 = 137,626.10/x
  3. Step 3: Cross multiply
    437,143.96x = 655,658.50 × 137,626.10
  4. Step 4: Simplify right side
    437,143.96x = 90,235,722,286.85
  5. Step 5: Solve for x
    x = 90,235,722,286.85/437,143.96
  6. Step 6: Final answer
    x = 206,421.07

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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.