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Finding the Fourth Proportional to 356.63, 534.98 and 151.18

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Solution

The fourth proportional to 356.63, 534.98 and 151.18 is: 226.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.63 : 534.98 = 151.18 : x
  2. Step 2: Convert to fraction form
    356.63/534.98 = 151.18/x
  3. Step 3: Cross multiply
    356.63x = 534.98 × 151.18
  4. Step 4: Simplify right side
    356.63x = 80,876.18
  5. Step 5: Solve for x
    x = 80,876.18/356.63
  6. Step 6: Final answer
    x = 226.78

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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.