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Finding the Fourth Proportional to 844.25, 1,266.18 and 324.08

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Solution

The fourth proportional to 844.25, 1,266.18 and 324.08 is: 486.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.25 : 1,266.18 = 324.08 : x
  2. Step 2: Convert to fraction form
    844.25/1,266.18 = 324.08/x
  3. Step 3: Cross multiply
    844.25x = 1,266.18 × 324.08
  4. Step 4: Simplify right side
    844.25x = 410,343.61
  5. Step 5: Solve for x
    x = 410,343.61/844.25
  6. Step 6: Final answer
    x = 486.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.