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Finding the Fourth Proportional to 316.44, 435.98 and 250.92

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Solution

The fourth proportional to 316.44, 435.98 and 250.92 is: 345.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.44 : 435.98 = 250.92 : x
  2. Step 2: Convert to fraction form
    316.44/435.98 = 250.92/x
  3. Step 3: Cross multiply
    316.44x = 435.98 × 250.92
  4. Step 4: Simplify right side
    316.44x = 109,396.10
  5. Step 5: Solve for x
    x = 109,396.10/316.44
  6. Step 6: Final answer
    x = 345.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.