Home / 279,216.03-418,818.65-79,537.71

Finding the Fourth Proportional to 279,216.03, 418,818.65 and 79,537.71

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Solution

The fourth proportional to 279,216.03, 418,818.65 and 79,537.71 is: 119,305.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,216.03 : 418,818.65 = 79,537.71 : x
  2. Step 2: Convert to fraction form
    279,216.03/418,818.65 = 79,537.71/x
  3. Step 3: Cross multiply
    279,216.03x = 418,818.65 × 79,537.71
  4. Step 4: Simplify right side
    279,216.03x = 33,311,875,928.60
  5. Step 5: Solve for x
    x = 33,311,875,928.60/279,216.03
  6. Step 6: Final answer
    x = 119,305.03

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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.