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Finding the Fourth Proportional to 541.52, 812.28 and 252.76

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Solution

The fourth proportional to 541.52, 812.28 and 252.76 is: 379.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.52 : 812.28 = 252.76 : x
  2. Step 2: Convert to fraction form
    541.52/812.28 = 252.76/x
  3. Step 3: Cross multiply
    541.52x = 812.28 × 252.76
  4. Step 4: Simplify right side
    541.52x = 205,311.89
  5. Step 5: Solve for x
    x = 205,311.89/541.52
  6. Step 6: Final answer
    x = 379.14

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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.