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Finding the Fourth Proportional to 279.22, 417.60 and 224.14

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Solution

The fourth proportional to 279.22, 417.60 and 224.14 is: 335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    279.22 : 417.60 = 224.14 : x
  2. Step 2: Convert to fraction form
    279.22/417.60 = 224.14/x
  3. Step 3: Cross multiply
    279.22x = 417.60 × 224.14
  4. Step 4: Simplify right side
    279.22x = 93,600.86
  5. Step 5: Solve for x
    x = 93,600.86/279.22
  6. Step 6: Final answer
    x = 335.22

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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.