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Finding the Fourth Proportional to 604.04, 905.14 and 279.32

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Solution

The fourth proportional to 604.04, 905.14 and 279.32 is: 418.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.04 : 905.14 = 279.32 : x
  2. Step 2: Convert to fraction form
    604.04/905.14 = 279.32/x
  3. Step 3: Cross multiply
    604.04x = 905.14 × 279.32
  4. Step 4: Simplify right side
    604.04x = 252,823.70
  5. Step 5: Solve for x
    x = 252,823.70/604.04
  6. Step 6: Final answer
    x = 418.55

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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.