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Finding the Fourth Proportional to 479, 717.52 and 234.76

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Solution

The fourth proportional to 479, 717.52 and 234.76 is: 351.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    479 : 717.52 = 234.76 : x
  2. Step 2: Convert to fraction form
    479/717.52 = 234.76/x
  3. Step 3: Cross multiply
    479x = 717.52 × 234.76
  4. Step 4: Simplify right side
    479x = 168,445.00
  5. Step 5: Solve for x
    x = 168,445.00/479
  6. Step 6: Final answer
    x = 351.66

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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.