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Finding the Fourth Proportional to 574.24, 792.39 and 322.18

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Solution

The fourth proportional to 574.24, 792.39 and 322.18 is: 444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.24 : 792.39 = 322.18 : x
  2. Step 2: Convert to fraction form
    574.24/792.39 = 322.18/x
  3. Step 3: Cross multiply
    574.24x = 792.39 × 322.18
  4. Step 4: Simplify right side
    574.24x = 255,292.21
  5. Step 5: Solve for x
    x = 255,292.21/574.24
  6. Step 6: Final answer
    x = 444.57

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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.