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Finding the Fourth Proportional to 148.91, 222.05 and 147.53

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Solution

The fourth proportional to 148.91, 222.05 and 147.53 is: 220.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    148.91 : 222.05 = 147.53 : x
  2. Step 2: Convert to fraction form
    148.91/222.05 = 147.53/x
  3. Step 3: Cross multiply
    148.91x = 222.05 × 147.53
  4. Step 4: Simplify right side
    148.91x = 32,759.96
  5. Step 5: Solve for x
    x = 32,759.96/148.91
  6. Step 6: Final answer
    x = 220.01

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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.