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Finding the Fourth Proportional to 612.05, 844.50 and 376.04

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Solution

The fourth proportional to 612.05, 844.50 and 376.04 is: 518.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.05 : 844.50 = 376.04 : x
  2. Step 2: Convert to fraction form
    612.05/844.50 = 376.04/x
  3. Step 3: Cross multiply
    612.05x = 844.50 × 376.04
  4. Step 4: Simplify right side
    612.05x = 317,561.56
  5. Step 5: Solve for x
    x = 317,561.56/612.05
  6. Step 6: Final answer
    x = 518.85

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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.