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Finding the Fourth Proportional to 340.60, 469.74 and 223.96

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Solution

The fourth proportional to 340.60, 469.74 and 223.96 is: 308.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.60 : 469.74 = 223.96 : x
  2. Step 2: Convert to fraction form
    340.60/469.74 = 223.96/x
  3. Step 3: Cross multiply
    340.60x = 469.74 × 223.96
  4. Step 4: Simplify right side
    340.60x = 105,202.97
  5. Step 5: Solve for x
    x = 105,202.97/340.60
  6. Step 6: Final answer
    x = 308.88

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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.