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Finding the Fourth Proportional to 356.28, 534.56 and 151

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Solution

The fourth proportional to 356.28, 534.56 and 151 is: 226.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.28 : 534.56 = 151 : x
  2. Step 2: Convert to fraction form
    356.28/534.56 = 151/x
  3. Step 3: Cross multiply
    356.28x = 534.56 × 151
  4. Step 4: Simplify right side
    356.28x = 80,718.56
  5. Step 5: Solve for x
    x = 80,718.56/356.28
  6. Step 6: Final answer
    x = 226.56

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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.