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Finding the Fourth Proportional to 150.88, 224.96 and 149.28

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Solution

The fourth proportional to 150.88, 224.96 and 149.28 is: 222.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.88 : 224.96 = 149.28 : x
  2. Step 2: Convert to fraction form
    150.88/224.96 = 149.28/x
  3. Step 3: Cross multiply
    150.88x = 224.96 × 149.28
  4. Step 4: Simplify right side
    150.88x = 33,582.03
  5. Step 5: Solve for x
    x = 33,582.03/150.88
  6. Step 6: Final answer
    x = 222.57

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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.