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Finding the Fourth Proportional to 425.35, 585.87 and 326.92

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Solution

The fourth proportional to 425.35, 585.87 and 326.92 is: 450.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.35 : 585.87 = 326.92 : x
  2. Step 2: Convert to fraction form
    425.35/585.87 = 326.92/x
  3. Step 3: Cross multiply
    425.35x = 585.87 × 326.92
  4. Step 4: Simplify right side
    425.35x = 191,532.62
  5. Step 5: Solve for x
    x = 191,532.62/425.35
  6. Step 6: Final answer
    x = 450.29

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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.