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Finding the Fourth Proportional to 158.51, 237.48 and 126.38

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Solution

The fourth proportional to 158.51, 237.48 and 126.38 is: 189.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.51 : 237.48 = 126.38 : x
  2. Step 2: Convert to fraction form
    158.51/237.48 = 126.38/x
  3. Step 3: Cross multiply
    158.51x = 237.48 × 126.38
  4. Step 4: Simplify right side
    158.51x = 30,012.72
  5. Step 5: Solve for x
    x = 30,012.72/158.51
  6. Step 6: Final answer
    x = 189.34

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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.