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Finding the Fourth Proportional to 158.32, 235.94 and 149.04

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Solution

The fourth proportional to 158.32, 235.94 and 149.04 is: 222.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.32 : 235.94 = 149.04 : x
  2. Step 2: Convert to fraction form
    158.32/235.94 = 149.04/x
  3. Step 3: Cross multiply
    158.32x = 235.94 × 149.04
  4. Step 4: Simplify right side
    158.32x = 35,164.50
  5. Step 5: Solve for x
    x = 35,164.50/158.32
  6. Step 6: Final answer
    x = 222.11

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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.