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Finding the Fourth Proportional to 274.11, 410.82 and 152.20

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Solution

The fourth proportional to 274.11, 410.82 and 152.20 is: 228.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.11 : 410.82 = 152.20 : x
  2. Step 2: Convert to fraction form
    274.11/410.82 = 152.20/x
  3. Step 3: Cross multiply
    274.11x = 410.82 × 152.20
  4. Step 4: Simplify right side
    274.11x = 62,526.80
  5. Step 5: Solve for x
    x = 62,526.80/274.11
  6. Step 6: Final answer
    x = 228.11

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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.