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Finding the Fourth Proportional to 174.19, 260.78 and 134.08

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Solution

The fourth proportional to 174.19, 260.78 and 134.08 is: 200.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.19 : 260.78 = 134.08 : x
  2. Step 2: Convert to fraction form
    174.19/260.78 = 134.08/x
  3. Step 3: Cross multiply
    174.19x = 260.78 × 134.08
  4. Step 4: Simplify right side
    174.19x = 34,964.71
  5. Step 5: Solve for x
    x = 34,964.71/174.19
  6. Step 6: Final answer
    x = 200.73

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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.