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Finding the Fourth Proportional to 130.60, 194.91 and 127.52

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Solution

The fourth proportional to 130.60, 194.91 and 127.52 is: 190.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.60 : 194.91 = 127.52 : x
  2. Step 2: Convert to fraction form
    130.60/194.91 = 127.52/x
  3. Step 3: Cross multiply
    130.60x = 194.91 × 127.52
  4. Step 4: Simplify right side
    130.60x = 24,855.30
  5. Step 5: Solve for x
    x = 24,855.30/130.60
  6. Step 6: Final answer
    x = 190.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.