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Finding the Fourth Proportional to 551,287.20, 826,930.80 and 177,310.20

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Solution

The fourth proportional to 551,287.20, 826,930.80 and 177,310.20 is: 265,965.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,287.20 : 826,930.80 = 177,310.20 : x
  2. Step 2: Convert to fraction form
    551,287.20/826,930.80 = 177,310.20/x
  3. Step 3: Cross multiply
    551,287.20x = 826,930.80 × 177,310.20
  4. Step 4: Simplify right side
    551,287.20x = 146,623,265,534.16
  5. Step 5: Solve for x
    x = 146,623,265,534.16/551,287.20
  6. Step 6: Final answer
    x = 265,965.30

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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.