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Finding the Fourth Proportional to 158.02, 236.67 and 149.02

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Solution

The fourth proportional to 158.02, 236.67 and 149.02 is: 223.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.02 : 236.67 = 149.02 : x
  2. Step 2: Convert to fraction form
    158.02/236.67 = 149.02/x
  3. Step 3: Cross multiply
    158.02x = 236.67 × 149.02
  4. Step 4: Simplify right side
    158.02x = 35,268.56
  5. Step 5: Solve for x
    x = 35,268.56/158.02
  6. Step 6: Final answer
    x = 223.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.