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Finding the Fourth Proportional to 192.02, 264.89 and 129.86

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Solution

The fourth proportional to 192.02, 264.89 and 129.86 is: 179.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.02 : 264.89 = 129.86 : x
  2. Step 2: Convert to fraction form
    192.02/264.89 = 129.86/x
  3. Step 3: Cross multiply
    192.02x = 264.89 × 129.86
  4. Step 4: Simplify right side
    192.02x = 34,397.62
  5. Step 5: Solve for x
    x = 34,397.62/192.02
  6. Step 6: Final answer
    x = 179.13

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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.