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Finding the Fourth Proportional to 540.50, 811.02 and 252.02

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Solution

The fourth proportional to 540.50, 811.02 and 252.02 is: 378.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.50 : 811.02 = 252.02 : x
  2. Step 2: Convert to fraction form
    540.50/811.02 = 252.02/x
  3. Step 3: Cross multiply
    540.50x = 811.02 × 252.02
  4. Step 4: Simplify right side
    540.50x = 204,393.26
  5. Step 5: Solve for x
    x = 204,393.26/540.50
  6. Step 6: Final answer
    x = 378.16

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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.