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Finding the Fourth Proportional to 479.00, 717.86 and 170.56

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Solution

The fourth proportional to 479.00, 717.86 and 170.56 is: 255.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.00 : 717.86 = 170.56 : x
  2. Step 2: Convert to fraction form
    479.00/717.86 = 170.56/x
  3. Step 3: Cross multiply
    479.00x = 717.86 × 170.56
  4. Step 4: Simplify right side
    479.00x = 122,438.95
  5. Step 5: Solve for x
    x = 122,438.95/479.00
  6. Step 6: Final answer
    x = 255.61

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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.