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Finding the Fourth Proportional to 574.15, 792.31 and 325.46

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Solution

The fourth proportional to 574.15, 792.31 and 325.46 is: 449.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.15 : 792.31 = 325.46 : x
  2. Step 2: Convert to fraction form
    574.15/792.31 = 325.46/x
  3. Step 3: Cross multiply
    574.15x = 792.31 × 325.46
  4. Step 4: Simplify right side
    574.15x = 257,863.59
  5. Step 5: Solve for x
    x = 257,863.59/574.15
  6. Step 6: Final answer
    x = 449.13

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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.