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Finding the Fourth Proportional to 294.60, 439.80 and 293.88

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Solution

The fourth proportional to 294.60, 439.80 and 293.88 is: 438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.60 : 439.80 = 293.88 : x
  2. Step 2: Convert to fraction form
    294.60/439.80 = 293.88/x
  3. Step 3: Cross multiply
    294.60x = 439.80 × 293.88
  4. Step 4: Simplify right side
    294.60x = 129,248.42
  5. Step 5: Solve for x
    x = 129,248.42/294.60
  6. Step 6: Final answer
    x = 438.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.