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Finding the Fourth Proportional to 132.99, 200.40 and 126.93

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Solution

The fourth proportional to 132.99, 200.40 and 126.93 is: 191.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.99 : 200.40 = 126.93 : x
  2. Step 2: Convert to fraction form
    132.99/200.40 = 126.93/x
  3. Step 3: Cross multiply
    132.99x = 200.40 × 126.93
  4. Step 4: Simplify right side
    132.99x = 25,436.77
  5. Step 5: Solve for x
    x = 25,436.77/132.99
  6. Step 6: Final answer
    x = 191.27

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.