Home / 311,360.25-467,040.83-86,721.33

Finding the Fourth Proportional to 311,360.25, 467,040.83 and 86,721.33

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Solution

The fourth proportional to 311,360.25, 467,040.83 and 86,721.33 is: 130,082.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,360.25 : 467,040.83 = 86,721.33 : x
  2. Step 2: Convert to fraction form
    311,360.25/467,040.83 = 86,721.33/x
  3. Step 3: Cross multiply
    311,360.25x = 467,040.83 × 86,721.33
  4. Step 4: Simplify right side
    311,360.25x = 40,502,401,508.30
  5. Step 5: Solve for x
    x = 40,502,401,508.30/311,360.25
  6. Step 6: Final answer
    x = 130,082.12

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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.