Home / 278,786.09-418,013.06-110,330.37

Finding the Fourth Proportional to 278,786.09, 418,013.06 and 110,330.37

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Solution

The fourth proportional to 278,786.09, 418,013.06 and 110,330.37 is: 165,429.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,786.09 : 418,013.06 = 110,330.37 : x
  2. Step 2: Convert to fraction form
    278,786.09/418,013.06 = 110,330.37/x
  3. Step 3: Cross multiply
    278,786.09x = 418,013.06 × 110,330.37
  4. Step 4: Simplify right side
    278,786.09x = 46,119,535,574.63
  5. Step 5: Solve for x
    x = 46,119,535,574.63/278,786.09
  6. Step 6: Final answer
    x = 165,429.83

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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.