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Finding the Fourth Proportional to 546,752.20, 820,128.30 and 251,840.20

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Solution

The fourth proportional to 546,752.20, 820,128.30 and 251,840.20 is: 377,760.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,752.20 : 820,128.30 = 251,840.20 : x
  2. Step 2: Convert to fraction form
    546,752.20/820,128.30 = 251,840.20/x
  3. Step 3: Cross multiply
    546,752.20x = 820,128.30 × 251,840.20
  4. Step 4: Simplify right side
    546,752.20x = 206,541,275,097.66
  5. Step 5: Solve for x
    x = 206,541,275,097.66/546,752.20
  6. Step 6: Final answer
    x = 377,760.30

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Double scale
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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.