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Finding the Fourth Proportional to 134.44, 201.63 and 43.15

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Solution

The fourth proportional to 134.44, 201.63 and 43.15 is: 64.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.44 : 201.63 = 43.15 : x
  2. Step 2: Convert to fraction form
    134.44/201.63 = 43.15/x
  3. Step 3: Cross multiply
    134.44x = 201.63 × 43.15
  4. Step 4: Simplify right side
    134.44x = 8,700.33
  5. Step 5: Solve for x
    x = 8,700.33/134.44
  6. Step 6: Final answer
    x = 64.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.