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Finding the Fourth Proportional to 158.75, 236.54 and 149.94

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Solution

The fourth proportional to 158.75, 236.54 and 149.94 is: 223.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.75 : 236.54 = 149.94 : x
  2. Step 2: Convert to fraction form
    158.75/236.54 = 149.94/x
  3. Step 3: Cross multiply
    158.75x = 236.54 × 149.94
  4. Step 4: Simplify right side
    158.75x = 35,466.06
  5. Step 5: Solve for x
    x = 35,466.06/158.75
  6. Step 6: Final answer
    x = 223.42

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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.