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Finding the Fourth Proportional to 490.86, 737.31 and 474.46

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Solution

The fourth proportional to 490.86, 737.31 and 474.46 is: 712.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    490.86 : 737.31 = 474.46 : x
  2. Step 2: Convert to fraction form
    490.86/737.31 = 474.46/x
  3. Step 3: Cross multiply
    490.86x = 737.31 × 474.46
  4. Step 4: Simplify right side
    490.86x = 349,824.10
  5. Step 5: Solve for x
    x = 349,824.10/490.86
  6. Step 6: Final answer
    x = 712.68

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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.