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Finding the Fourth Proportional to 149.97, 223.35 and 148.35

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Solution

The fourth proportional to 149.97, 223.35 and 148.35 is: 220.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.97 : 223.35 = 148.35 : x
  2. Step 2: Convert to fraction form
    149.97/223.35 = 148.35/x
  3. Step 3: Cross multiply
    149.97x = 223.35 × 148.35
  4. Step 4: Simplify right side
    149.97x = 33,133.97
  5. Step 5: Solve for x
    x = 33,133.97/149.97
  6. Step 6: Final answer
    x = 220.94

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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.