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Finding the Fourth Proportional to 402.45, 602.66 and 294.32

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Solution

The fourth proportional to 402.45, 602.66 and 294.32 is: 440.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.45 : 602.66 = 294.32 : x
  2. Step 2: Convert to fraction form
    402.45/602.66 = 294.32/x
  3. Step 3: Cross multiply
    402.45x = 602.66 × 294.32
  4. Step 4: Simplify right side
    402.45x = 177,370.41
  5. Step 5: Solve for x
    x = 177,370.41/402.45
  6. Step 6: Final answer
    x = 440.73

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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.