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Finding the Fourth Proportional to 295.68, 406.80 and 229.92

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Solution

The fourth proportional to 295.68, 406.80 and 229.92 is: 316.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.68 : 406.80 = 229.92 : x
  2. Step 2: Convert to fraction form
    295.68/406.80 = 229.92/x
  3. Step 3: Cross multiply
    295.68x = 406.80 × 229.92
  4. Step 4: Simplify right side
    295.68x = 93,531.46
  5. Step 5: Solve for x
    x = 93,531.46/295.68
  6. Step 6: Final answer
    x = 316.33

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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.