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Finding the Fourth Proportional to 158.49, 218.93 and 132.35

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Solution

The fourth proportional to 158.49, 218.93 and 132.35 is: 182.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.49 : 218.93 = 132.35 : x
  2. Step 2: Convert to fraction form
    158.49/218.93 = 132.35/x
  3. Step 3: Cross multiply
    158.49x = 218.93 × 132.35
  4. Step 4: Simplify right side
    158.49x = 28,975.23
  5. Step 5: Solve for x
    x = 28,975.23/158.49
  6. Step 6: Final answer
    x = 182.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.