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Finding the Fourth Proportional to 150.34, 224.21 and 135.76

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Solution

The fourth proportional to 150.34, 224.21 and 135.76 is: 202.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.34 : 224.21 = 135.76 : x
  2. Step 2: Convert to fraction form
    150.34/224.21 = 135.76/x
  3. Step 3: Cross multiply
    150.34x = 224.21 × 135.76
  4. Step 4: Simplify right side
    150.34x = 30,438.53
  5. Step 5: Solve for x
    x = 30,438.53/150.34
  6. Step 6: Final answer
    x = 202.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.