Home / 309,747.60-464,624.64-132,143.76

Finding the Fourth Proportional to 309,747.60, 464,624.64 and 132,143.76

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Solution

The fourth proportional to 309,747.60, 464,624.64 and 132,143.76 is: 198,217.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,747.60 : 464,624.64 = 132,143.76 : x
  2. Step 2: Convert to fraction form
    309,747.60/464,624.64 = 132,143.76/x
  3. Step 3: Cross multiply
    309,747.60x = 464,624.64 × 132,143.76
  4. Step 4: Simplify right side
    309,747.60x = 61,397,246,918.25
  5. Step 5: Solve for x
    x = 61,397,246,918.25/309,747.60
  6. Step 6: Final answer
    x = 198,217.02

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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.