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Finding the Fourth Proportional to 627,676.80, 941,515.20 and 206,851.20

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Solution

The fourth proportional to 627,676.80, 941,515.20 and 206,851.20 is: 310,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,676.80 : 941,515.20 = 206,851.20 : x
  2. Step 2: Convert to fraction form
    627,676.80/941,515.20 = 206,851.20/x
  3. Step 3: Cross multiply
    627,676.80x = 941,515.20 × 206,851.20
  4. Step 4: Simplify right side
    627,676.80x = 194,753,548,938.24
  5. Step 5: Solve for x
    x = 194,753,548,938.24/627,676.80
  6. Step 6: Final answer
    x = 310,276.80

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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.