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Finding the Fourth Proportional to 316.57, 473.83 and 169.95

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Solution

The fourth proportional to 316.57, 473.83 and 169.95 is: 254.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.57 : 473.83 = 169.95 : x
  2. Step 2: Convert to fraction form
    316.57/473.83 = 169.95/x
  3. Step 3: Cross multiply
    316.57x = 473.83 × 169.95
  4. Step 4: Simplify right side
    316.57x = 80,525.04
  5. Step 5: Solve for x
    x = 80,525.04/316.57
  6. Step 6: Final answer
    x = 254.37

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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.