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Finding the Fourth Proportional to 440.79, 660.67 and 294.37

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Solution

The fourth proportional to 440.79, 660.67 and 294.37 is: 441.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.79 : 660.67 = 294.37 : x
  2. Step 2: Convert to fraction form
    440.79/660.67 = 294.37/x
  3. Step 3: Cross multiply
    440.79x = 660.67 × 294.37
  4. Step 4: Simplify right side
    440.79x = 194,481.43
  5. Step 5: Solve for x
    x = 194,481.43/440.79
  6. Step 6: Final answer
    x = 441.21

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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.