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Finding the Fourth Proportional to 224.99, 310.43 and 159.65

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Solution

The fourth proportional to 224.99, 310.43 and 159.65 is: 220.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.99 : 310.43 = 159.65 : x
  2. Step 2: Convert to fraction form
    224.99/310.43 = 159.65/x
  3. Step 3: Cross multiply
    224.99x = 310.43 × 159.65
  4. Step 4: Simplify right side
    224.99x = 49,559.35
  5. Step 5: Solve for x
    x = 49,559.35/224.99
  6. Step 6: Final answer
    x = 220.27

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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.