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Finding the Fourth Proportional to 149.33, 225.18 and 146.59

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Solution

The fourth proportional to 149.33, 225.18 and 146.59 is: 221.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.33 : 225.18 = 146.59 : x
  2. Step 2: Convert to fraction form
    149.33/225.18 = 146.59/x
  3. Step 3: Cross multiply
    149.33x = 225.18 × 146.59
  4. Step 4: Simplify right side
    149.33x = 33,009.14
  5. Step 5: Solve for x
    x = 33,009.14/149.33
  6. Step 6: Final answer
    x = 221.05

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.