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Finding the Fourth Proportional to 224.90, 339.03 and 210.05

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Solution

The fourth proportional to 224.90, 339.03 and 210.05 is: 316.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.90 : 339.03 = 210.05 : x
  2. Step 2: Convert to fraction form
    224.90/339.03 = 210.05/x
  3. Step 3: Cross multiply
    224.90x = 339.03 × 210.05
  4. Step 4: Simplify right side
    224.90x = 71,211.56
  5. Step 5: Solve for x
    x = 71,211.56/224.90
  6. Step 6: Final answer
    x = 316.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.