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Finding the Fourth Proportional to 547.58, 821.46 and 352.56

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Solution

The fourth proportional to 547.58, 821.46 and 352.56 is: 528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.58 : 821.46 = 352.56 : x
  2. Step 2: Convert to fraction form
    547.58/821.46 = 352.56/x
  3. Step 3: Cross multiply
    547.58x = 821.46 × 352.56
  4. Step 4: Simplify right side
    547.58x = 289,613.94
  5. Step 5: Solve for x
    x = 289,613.94/547.58
  6. Step 6: Final answer
    x = 528.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.