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Finding the Fourth Proportional to 546.13, 819.16 and 272.15

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Solution

The fourth proportional to 546.13, 819.16 and 272.15 is: 408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.13 : 819.16 = 272.15 : x
  2. Step 2: Convert to fraction form
    546.13/819.16 = 272.15/x
  3. Step 3: Cross multiply
    546.13x = 819.16 × 272.15
  4. Step 4: Simplify right side
    546.13x = 222,928.94
  5. Step 5: Solve for x
    x = 222,928.94/546.13
  6. Step 6: Final answer
    x = 408.20

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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.