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Finding the Fourth Proportional to 179.15, 268.75 and 63.55

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Solution

The fourth proportional to 179.15, 268.75 and 63.55 is: 95.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.15 : 268.75 = 63.55 : x
  2. Step 2: Convert to fraction form
    179.15/268.75 = 63.55/x
  3. Step 3: Cross multiply
    179.15x = 268.75 × 63.55
  4. Step 4: Simplify right side
    179.15x = 17,079.48
  5. Step 5: Solve for x
    x = 17,079.48/179.15
  6. Step 6: Final answer
    x = 95.34

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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.