Home / 207,929.70-311,894.55-113,451.30

Finding the Fourth Proportional to 207,929.70, 311,894.55 and 113,451.30

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Solution

The fourth proportional to 207,929.70, 311,894.55 and 113,451.30 is: 170,176.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,929.70 : 311,894.55 = 113,451.30 : x
  2. Step 2: Convert to fraction form
    207,929.70/311,894.55 = 113,451.30/x
  3. Step 3: Cross multiply
    207,929.70x = 311,894.55 × 113,451.30
  4. Step 4: Simplify right side
    207,929.70x = 35,384,842,160.42
  5. Step 5: Solve for x
    x = 35,384,842,160.42/207,929.70
  6. Step 6: Final answer
    x = 170,176.95

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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.