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Finding the Fourth Proportional to 654,171.40, 981,321.90 and 227,641.60

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Solution

The fourth proportional to 654,171.40, 981,321.90 and 227,641.60 is: 341,484.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,171.40 : 981,321.90 = 227,641.60 : x
  2. Step 2: Convert to fraction form
    654,171.40/981,321.90 = 227,641.60/x
  3. Step 3: Cross multiply
    654,171.40x = 981,321.90 × 227,641.60
  4. Step 4: Simplify right side
    654,171.40x = 223,389,687,431.04
  5. Step 5: Solve for x
    x = 223,389,687,431.04/654,171.40
  6. Step 6: Final answer
    x = 341,484.95

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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.