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Finding the Fourth Proportional to 612.19, 844.89 and 376.27

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Solution

The fourth proportional to 612.19, 844.89 and 376.27 is: 519.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.19 : 844.89 = 376.27 : x
  2. Step 2: Convert to fraction form
    612.19/844.89 = 376.27/x
  3. Step 3: Cross multiply
    612.19x = 844.89 × 376.27
  4. Step 4: Simplify right side
    612.19x = 317,906.76
  5. Step 5: Solve for x
    x = 317,906.76/612.19
  6. Step 6: Final answer
    x = 519.29

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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.