Home / 278,834.98-418,017.32-120,944.56

Finding the Fourth Proportional to 278,834.98, 418,017.32 and 120,944.56

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Solution

The fourth proportional to 278,834.98, 418,017.32 and 120,944.56 is: 181,314.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,834.98 : 418,017.32 = 120,944.56 : x
  2. Step 2: Convert to fraction form
    278,834.98/418,017.32 = 120,944.56/x
  3. Step 3: Cross multiply
    278,834.98x = 418,017.32 × 120,944.56
  4. Step 4: Simplify right side
    278,834.98x = 50,556,920,839.78
  5. Step 5: Solve for x
    x = 50,556,920,839.78/278,834.98
  6. Step 6: Final answer
    x = 181,314.84

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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.