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Finding the Fourth Proportional to 295.91, 407.99 and 222.47

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Solution

The fourth proportional to 295.91, 407.99 and 222.47 is: 306.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.91 : 407.99 = 222.47 : x
  2. Step 2: Convert to fraction form
    295.91/407.99 = 222.47/x
  3. Step 3: Cross multiply
    295.91x = 407.99 × 222.47
  4. Step 4: Simplify right side
    295.91x = 90,764.42
  5. Step 5: Solve for x
    x = 90,764.42/295.91
  6. Step 6: Final answer
    x = 306.73

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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.