Home / 279,429.75-419,184.05-89,826.57

Finding the Fourth Proportional to 279,429.75, 419,184.05 and 89,826.57

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Solution

The fourth proportional to 279,429.75, 419,184.05 and 89,826.57 is: 134,752.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,429.75 : 419,184.05 = 89,826.57 : x
  2. Step 2: Convert to fraction form
    279,429.75/419,184.05 = 89,826.57/x
  3. Step 3: Cross multiply
    279,429.75x = 419,184.05 × 89,826.57
  4. Step 4: Simplify right side
    279,429.75x = 37,653,864,961.08
  5. Step 5: Solve for x
    x = 37,653,864,961.08/279,429.75
  6. Step 6: Final answer
    x = 134,752.53

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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.