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Finding the Fourth Proportional to 406.90, 608.86 and 224.47

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Solution

The fourth proportional to 406.90, 608.86 and 224.47 is: 335.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    406.90 : 608.86 = 224.47 : x
  2. Step 2: Convert to fraction form
    406.90/608.86 = 224.47/x
  3. Step 3: Cross multiply
    406.90x = 608.86 × 224.47
  4. Step 4: Simplify right side
    406.90x = 136,670.80
  5. Step 5: Solve for x
    x = 136,670.80/406.90
  6. Step 6: Final answer
    x = 335.88

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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.