Home / 209,464.35-313,800.09-123,818.79

Finding the Fourth Proportional to 209,464.35, 313,800.09 and 123,818.79

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Solution

The fourth proportional to 209,464.35, 313,800.09 and 123,818.79 is: 185,493.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,464.35 : 313,800.09 = 123,818.79 : x
  2. Step 2: Convert to fraction form
    209,464.35/313,800.09 = 123,818.79/x
  3. Step 3: Cross multiply
    209,464.35x = 313,800.09 × 123,818.79
  4. Step 4: Simplify right side
    209,464.35x = 38,854,348,158.12
  5. Step 5: Solve for x
    x = 38,854,348,158.12/209,464.35
  6. Step 6: Final answer
    x = 185,493.85

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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.