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Finding the Fourth Proportional to 130.60, 196.04 and 115.48

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Solution

The fourth proportional to 130.60, 196.04 and 115.48 is: 173.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.60 : 196.04 = 115.48 : x
  2. Step 2: Convert to fraction form
    130.60/196.04 = 115.48/x
  3. Step 3: Cross multiply
    130.60x = 196.04 × 115.48
  4. Step 4: Simplify right side
    130.60x = 22,638.70
  5. Step 5: Solve for x
    x = 22,638.70/130.60
  6. Step 6: Final answer
    x = 173.34

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