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Finding the Fourth Proportional to 313.26, 432.24 and 250.90

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Solution

The fourth proportional to 313.26, 432.24 and 250.90 is: 346.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.26 : 432.24 = 250.90 : x
  2. Step 2: Convert to fraction form
    313.26/432.24 = 250.90/x
  3. Step 3: Cross multiply
    313.26x = 432.24 × 250.90
  4. Step 4: Simplify right side
    313.26x = 108,449.02
  5. Step 5: Solve for x
    x = 108,449.02/313.26
  6. Step 6: Final answer
    x = 346.19

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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.