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Finding the Fourth Proportional to 158.13, 236.07 and 148.95

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Solution

The fourth proportional to 158.13, 236.07 and 148.95 is: 222.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.13 : 236.07 = 148.95 : x
  2. Step 2: Convert to fraction form
    158.13/236.07 = 148.95/x
  3. Step 3: Cross multiply
    158.13x = 236.07 × 148.95
  4. Step 4: Simplify right side
    158.13x = 35,162.63
  5. Step 5: Solve for x
    x = 35,162.63/158.13
  6. Step 6: Final answer
    x = 222.37

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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.