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Finding the Fourth Proportional to 486,671.40, 730,007.10 and 131,740.20

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Solution

The fourth proportional to 486,671.40, 730,007.10 and 131,740.20 is: 197,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,671.40 : 730,007.10 = 131,740.20 : x
  2. Step 2: Convert to fraction form
    486,671.40/730,007.10 = 131,740.20/x
  3. Step 3: Cross multiply
    486,671.40x = 730,007.10 × 131,740.20
  4. Step 4: Simplify right side
    486,671.40x = 96,171,281,355.42
  5. Step 5: Solve for x
    x = 96,171,281,355.42/486,671.40
  6. Step 6: Final answer
    x = 197,610.30

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Similar ratio
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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.