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Finding the Fourth Proportional to 150.45, 224.20 and 145.56

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Solution

The fourth proportional to 150.45, 224.20 and 145.56 is: 216.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.45 : 224.20 = 145.56 : x
  2. Step 2: Convert to fraction form
    150.45/224.20 = 145.56/x
  3. Step 3: Cross multiply
    150.45x = 224.20 × 145.56
  4. Step 4: Simplify right side
    150.45x = 32,634.55
  5. Step 5: Solve for x
    x = 32,634.55/150.45
  6. Step 6: Final answer
    x = 216.91

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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.