Home / 341,931.20-512,891.10-131,614.70

Finding the Fourth Proportional to 341,931.20, 512,891.10 and 131,614.70

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Solution

The fourth proportional to 341,931.20, 512,891.10 and 131,614.70 is: 197,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,931.20 : 512,891.10 = 131,614.70 : x
  2. Step 2: Convert to fraction form
    341,931.20/512,891.10 = 131,614.70/x
  3. Step 3: Cross multiply
    341,931.20x = 512,891.10 × 131,614.70
  4. Step 4: Simplify right side
    341,931.20x = 67,504,005,694.71
  5. Step 5: Solve for x
    x = 67,504,005,694.71/341,931.20
  6. Step 6: Final answer
    x = 197,419.85

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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.