Home / 381,210.26-571,815.38-131,892.26

Finding the Fourth Proportional to 381,210.26, 571,815.38 and 131,892.26

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Solution

The fourth proportional to 381,210.26, 571,815.38 and 131,892.26 is: 197,838.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,210.26 : 571,815.38 = 131,892.26 : x
  2. Step 2: Convert to fraction form
    381,210.26/571,815.38 = 131,892.26/x
  3. Step 3: Cross multiply
    381,210.26x = 571,815.38 × 131,892.26
  4. Step 4: Simplify right side
    381,210.26x = 75,418,022,770.96
  5. Step 5: Solve for x
    x = 75,418,022,770.96/381,210.26
  6. Step 6: Final answer
    x = 197,838.39

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Double scale
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Similar ratio
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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.