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Finding the Fourth Proportional to 618.09, 926.52 and 344.04

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Solution

The fourth proportional to 618.09, 926.52 and 344.04 is: 515.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.09 : 926.52 = 344.04 : x
  2. Step 2: Convert to fraction form
    618.09/926.52 = 344.04/x
  3. Step 3: Cross multiply
    618.09x = 926.52 × 344.04
  4. Step 4: Simplify right side
    618.09x = 318,759.94
  5. Step 5: Solve for x
    x = 318,759.94/618.09
  6. Step 6: Final answer
    x = 515.72

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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.