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Finding the Fourth Proportional to 547.80, 756.14 and 326.67

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Solution

The fourth proportional to 547.80, 756.14 and 326.67 is: 450.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.80 : 756.14 = 326.67 : x
  2. Step 2: Convert to fraction form
    547.80/756.14 = 326.67/x
  3. Step 3: Cross multiply
    547.80x = 756.14 × 326.67
  4. Step 4: Simplify right side
    547.80x = 247,003.78
  5. Step 5: Solve for x
    x = 247,003.78/547.80
  6. Step 6: Final answer
    x = 450.90

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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.