Home / 207,917.80-311,439.30-172,925.80

Finding the Fourth Proportional to 207,917.80, 311,439.30 and 172,925.80

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Solution

The fourth proportional to 207,917.80, 311,439.30 and 172,925.80 is: 259,024.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,917.80 : 311,439.30 = 172,925.80 : x
  2. Step 2: Convert to fraction form
    207,917.80/311,439.30 = 172,925.80/x
  3. Step 3: Cross multiply
    207,917.80x = 311,439.30 × 172,925.80
  4. Step 4: Simplify right side
    207,917.80x = 53,855,890,103.94
  5. Step 5: Solve for x
    x = 53,855,890,103.94/207,917.80
  6. Step 6: Final answer
    x = 259,024.91

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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.