Home / 207,760.30-311,640.45-172,330.90

Finding the Fourth Proportional to 207,760.30, 311,640.45 and 172,330.90

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Solution

The fourth proportional to 207,760.30, 311,640.45 and 172,330.90 is: 258,496.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,760.30 : 311,640.45 = 172,330.90 : x
  2. Step 2: Convert to fraction form
    207,760.30/311,640.45 = 172,330.90/x
  3. Step 3: Cross multiply
    207,760.30x = 311,640.45 × 172,330.90
  4. Step 4: Simplify right side
    207,760.30x = 53,705,279,224.91
  5. Step 5: Solve for x
    x = 53,705,279,224.91/207,760.30
  6. Step 6: Final answer
    x = 258,496.35

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1.5x scale

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.