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Finding the Fourth Proportional to 339,581.68, 468,650.52 and 218,974

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Solution

The fourth proportional to 339,581.68, 468,650.52 and 218,974 is: 302,202.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,581.68 : 468,650.52 = 218,974 : x
  2. Step 2: Convert to fraction form
    339,581.68/468,650.52 = 218,974/x
  3. Step 3: Cross multiply
    339,581.68x = 468,650.52 × 218,974
  4. Step 4: Simplify right side
    339,581.68x = 102,622,278,966.48
  5. Step 5: Solve for x
    x = 102,622,278,966.48/339,581.68
  6. Step 6: Final answer
    x = 302,202.05

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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.