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Finding the Fourth Proportional to 540.96, 811.68 and 252.24

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Solution

The fourth proportional to 540.96, 811.68 and 252.24 is: 378.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.96 : 811.68 = 252.24 : x
  2. Step 2: Convert to fraction form
    540.96/811.68 = 252.24/x
  3. Step 3: Cross multiply
    540.96x = 811.68 × 252.24
  4. Step 4: Simplify right side
    540.96x = 204,738.16
  5. Step 5: Solve for x
    x = 204,738.16/540.96
  6. Step 6: Final answer
    x = 378.47

Related Problems

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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.