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Finding the Fourth Proportional to 177.58, 266.20 and 134.30

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Solution

The fourth proportional to 177.58, 266.20 and 134.30 is: 201.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.58 : 266.20 = 134.30 : x
  2. Step 2: Convert to fraction form
    177.58/266.20 = 134.30/x
  3. Step 3: Cross multiply
    177.58x = 266.20 × 134.30
  4. Step 4: Simplify right side
    177.58x = 35,749.31
  5. Step 5: Solve for x
    x = 35,749.31/177.58
  6. Step 6: Final answer
    x = 201.31

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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.