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Finding the Fourth Proportional to 546.07, 753.45 and 324.90

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Solution

The fourth proportional to 546.07, 753.45 and 324.90 is: 448.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.07 : 753.45 = 324.90 : x
  2. Step 2: Convert to fraction form
    546.07/753.45 = 324.90/x
  3. Step 3: Cross multiply
    546.07x = 753.45 × 324.90
  4. Step 4: Simplify right side
    546.07x = 244,795.91
  5. Step 5: Solve for x
    x = 244,795.91/546.07
  6. Step 6: Final answer
    x = 448.29

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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.