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Finding the Fourth Proportional to 130.64, 179.30 and 127.04

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Solution

The fourth proportional to 130.64, 179.30 and 127.04 is: 174.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.64 : 179.30 = 127.04 : x
  2. Step 2: Convert to fraction form
    130.64/179.30 = 127.04/x
  3. Step 3: Cross multiply
    130.64x = 179.30 × 127.04
  4. Step 4: Simplify right side
    130.64x = 22,778.27
  5. Step 5: Solve for x
    x = 22,778.27/130.64
  6. Step 6: Final answer
    x = 174.36

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.