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Finding the Fourth Proportional to 618,296, 927,173.92 and 218,804

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Solution

The fourth proportional to 618,296, 927,173.92 and 218,804 is: 328,110.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,296 : 927,173.92 = 218,804 : x
  2. Step 2: Convert to fraction form
    618,296/927,173.92 = 218,804/x
  3. Step 3: Cross multiply
    618,296x = 927,173.92 × 218,804
  4. Step 4: Simplify right side
    618,296x = 202,869,362,391.68
  5. Step 5: Solve for x
    x = 202,869,362,391.68/618,296
  6. Step 6: Final answer
    x = 328,110.42

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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.