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Finding the Fourth Proportional to 158.11, 237.13 and 49.88

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Solution

The fourth proportional to 158.11, 237.13 and 49.88 is: 74.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.11 : 237.13 = 49.88 : x
  2. Step 2: Convert to fraction form
    158.11/237.13 = 49.88/x
  3. Step 3: Cross multiply
    158.11x = 237.13 × 49.88
  4. Step 4: Simplify right side
    158.11x = 11,828.51
  5. Step 5: Solve for x
    x = 11,828.51/158.11
  6. Step 6: Final answer
    x = 74.81

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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.