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Finding the Fourth Proportional to 134.52, 200.41 and 127.63

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Solution

The fourth proportional to 134.52, 200.41 and 127.63 is: 190.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.52 : 200.41 = 127.63 : x
  2. Step 2: Convert to fraction form
    134.52/200.41 = 127.63/x
  3. Step 3: Cross multiply
    134.52x = 200.41 × 127.63
  4. Step 4: Simplify right side
    134.52x = 25,578.33
  5. Step 5: Solve for x
    x = 25,578.33/134.52
  6. Step 6: Final answer
    x = 190.15

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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.