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Finding the Fourth Proportional to 547.08, 755.56 and 372.12

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Solution

The fourth proportional to 547.08, 755.56 and 372.12 is: 513.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.08 : 755.56 = 372.12 : x
  2. Step 2: Convert to fraction form
    547.08/755.56 = 372.12/x
  3. Step 3: Cross multiply
    547.08x = 755.56 × 372.12
  4. Step 4: Simplify right side
    547.08x = 281,158.99
  5. Step 5: Solve for x
    x = 281,158.99/547.08
  6. Step 6: Final answer
    x = 513.93

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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.