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Finding the Fourth Proportional to 480.91, 663.39 and 294.34

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Solution

The fourth proportional to 480.91, 663.39 and 294.34 is: 406.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.91 : 663.39 = 294.34 : x
  2. Step 2: Convert to fraction form
    480.91/663.39 = 294.34/x
  3. Step 3: Cross multiply
    480.91x = 663.39 × 294.34
  4. Step 4: Simplify right side
    480.91x = 195,262.21
  5. Step 5: Solve for x
    x = 195,262.21/480.91
  6. Step 6: Final answer
    x = 406.03

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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.