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Finding the Fourth Proportional to 547.33, 755.33 and 326.40

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Solution

The fourth proportional to 547.33, 755.33 and 326.40 is: 450.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.33 : 755.33 = 326.40 : x
  2. Step 2: Convert to fraction form
    547.33/755.33 = 326.40/x
  3. Step 3: Cross multiply
    547.33x = 755.33 × 326.40
  4. Step 4: Simplify right side
    547.33x = 246,539.71
  5. Step 5: Solve for x
    x = 246,539.71/547.33
  6. Step 6: Final answer
    x = 450.44

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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.