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Finding the Fourth Proportional to 546.90, 754.36 and 325.69

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Solution

The fourth proportional to 546.90, 754.36 and 325.69 is: 449.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.90 : 754.36 = 325.69 : x
  2. Step 2: Convert to fraction form
    546.90/754.36 = 325.69/x
  3. Step 3: Cross multiply
    546.90x = 754.36 × 325.69
  4. Step 4: Simplify right side
    546.90x = 245,686.64
  5. Step 5: Solve for x
    x = 245,686.64/546.90
  6. Step 6: Final answer
    x = 449.23

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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.