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Finding the Fourth Proportional to 546.12, 753.24 and 447.60

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Solution

The fourth proportional to 546.12, 753.24 and 447.60 is: 617.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.12 : 753.24 = 447.60 : x
  2. Step 2: Convert to fraction form
    546.12/753.24 = 447.60/x
  3. Step 3: Cross multiply
    546.12x = 753.24 × 447.60
  4. Step 4: Simplify right side
    546.12x = 337,150.22
  5. Step 5: Solve for x
    x = 337,150.22/546.12
  6. Step 6: Final answer
    x = 617.36

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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.