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Finding the Fourth Proportional to 195.60, 269.70 and 130.02

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Solution

The fourth proportional to 195.60, 269.70 and 130.02 is: 179.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.60 : 269.70 = 130.02 : x
  2. Step 2: Convert to fraction form
    195.60/269.70 = 130.02/x
  3. Step 3: Cross multiply
    195.60x = 269.70 × 130.02
  4. Step 4: Simplify right side
    195.60x = 35,066.39
  5. Step 5: Solve for x
    x = 35,066.39/195.60
  6. Step 6: Final answer
    x = 179.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.