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Finding the Fourth Proportional to 356.43, 534.66 and 150.87

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Solution

The fourth proportional to 356.43, 534.66 and 150.87 is: 226.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.43 : 534.66 = 150.87 : x
  2. Step 2: Convert to fraction form
    356.43/534.66 = 150.87/x
  3. Step 3: Cross multiply
    356.43x = 534.66 × 150.87
  4. Step 4: Simplify right side
    356.43x = 80,664.15
  5. Step 5: Solve for x
    x = 80,664.15/356.43
  6. Step 6: Final answer
    x = 226.31

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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.