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Finding the Fourth Proportional to 485,003.64, 727,505.58 and 148,046.20

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Solution

The fourth proportional to 485,003.64, 727,505.58 and 148,046.20 is: 222,069.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,003.64 : 727,505.58 = 148,046.20 : x
  2. Step 2: Convert to fraction form
    485,003.64/727,505.58 = 148,046.20/x
  3. Step 3: Cross multiply
    485,003.64x = 727,505.58 × 148,046.20
  4. Step 4: Simplify right side
    485,003.64x = 107,704,436,597.80
  5. Step 5: Solve for x
    x = 107,704,436,597.80/485,003.64
  6. Step 6: Final answer
    x = 222,069.34

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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.