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Finding the Fourth Proportional to 134.49, 200.71 and 131.46

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Solution

The fourth proportional to 134.49, 200.71 and 131.46 is: 196.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.49 : 200.71 = 131.46 : x
  2. Step 2: Convert to fraction form
    134.49/200.71 = 131.46/x
  3. Step 3: Cross multiply
    134.49x = 200.71 × 131.46
  4. Step 4: Simplify right side
    134.49x = 26,384.75
  5. Step 5: Solve for x
    x = 26,384.75/134.49
  6. Step 6: Final answer
    x = 196.18

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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.