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Finding the Fourth Proportional to 547.07, 754.93 and 298.39

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Solution

The fourth proportional to 547.07, 754.93 and 298.39 is: 411.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.07 : 754.93 = 298.39 : x
  2. Step 2: Convert to fraction form
    547.07/754.93 = 298.39/x
  3. Step 3: Cross multiply
    547.07x = 754.93 × 298.39
  4. Step 4: Simplify right side
    547.07x = 225,263.56
  5. Step 5: Solve for x
    x = 225,263.56/547.07
  6. Step 6: Final answer
    x = 411.76

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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.