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Finding the Fourth Proportional to 547.24, 755.16 and 298.56

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Solution

The fourth proportional to 547.24, 755.16 and 298.56 is: 411.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.24 : 755.16 = 298.56 : x
  2. Step 2: Convert to fraction form
    547.24/755.16 = 298.56/x
  3. Step 3: Cross multiply
    547.24x = 755.16 × 298.56
  4. Step 4: Simplify right side
    547.24x = 225,456.79
  5. Step 5: Solve for x
    x = 225,456.79/547.24
  6. Step 6: Final answer
    x = 411.99

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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.