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Finding the Fourth Proportional to 134.30, 201.45 and 57.35

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Solution

The fourth proportional to 134.30, 201.45 and 57.35 is: 86.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.30 : 201.45 = 57.35 : x
  2. Step 2: Convert to fraction form
    134.30/201.45 = 57.35/x
  3. Step 3: Cross multiply
    134.30x = 201.45 × 57.35
  4. Step 4: Simplify right side
    134.30x = 11,553.16
  5. Step 5: Solve for x
    x = 11,553.16/134.30
  6. Step 6: Final answer
    x = 86.03

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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.