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Finding the Fourth Proportional to 177.27, 265.51 and 108.59

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Solution

The fourth proportional to 177.27, 265.51 and 108.59 is: 162.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.27 : 265.51 = 108.59 : x
  2. Step 2: Convert to fraction form
    177.27/265.51 = 108.59/x
  3. Step 3: Cross multiply
    177.27x = 265.51 × 108.59
  4. Step 4: Simplify right side
    177.27x = 28,830.54
  5. Step 5: Solve for x
    x = 28,830.54/177.27
  6. Step 6: Final answer
    x = 162.64

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Why These Related Problems?

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