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Finding the Fourth Proportional to 546.31, 820.05 and 303.04

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Solution

The fourth proportional to 546.31, 820.05 and 303.04 is: 454.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.31 : 820.05 = 303.04 : x
  2. Step 2: Convert to fraction form
    546.31/820.05 = 303.04/x
  3. Step 3: Cross multiply
    546.31x = 820.05 × 303.04
  4. Step 4: Simplify right side
    546.31x = 248,507.95
  5. Step 5: Solve for x
    x = 248,507.95/546.31
  6. Step 6: Final answer
    x = 454.88

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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.