Home / 215,217.92-322,819.58-57,438.02

Finding the Fourth Proportional to 215,217.92, 322,819.58 and 57,438.02

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Solution

The fourth proportional to 215,217.92, 322,819.58 and 57,438.02 is: 86,155.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,217.92 : 322,819.58 = 57,438.02 : x
  2. Step 2: Convert to fraction form
    215,217.92/322,819.58 = 57,438.02/x
  3. Step 3: Cross multiply
    215,217.92x = 322,819.58 × 57,438.02
  4. Step 4: Simplify right side
    215,217.92x = 18,542,117,492.43
  5. Step 5: Solve for x
    x = 18,542,117,492.43/215,217.92
  6. Step 6: Final answer
    x = 86,155.08

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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.