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Finding the Fourth Proportional to 547.95, 756.17 and 299.28

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Solution

The fourth proportional to 547.95, 756.17 and 299.28 is: 413.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.95 : 756.17 = 299.28 : x
  2. Step 2: Convert to fraction form
    547.95/756.17 = 299.28/x
  3. Step 3: Cross multiply
    547.95x = 756.17 × 299.28
  4. Step 4: Simplify right side
    547.95x = 226,306.56
  5. Step 5: Solve for x
    x = 226,306.56/547.95
  6. Step 6: Final answer
    x = 413.01

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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.