Home / 311,947.40-467,921.10-193,233.80

Finding the Fourth Proportional to 311,947.40, 467,921.10 and 193,233.80

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Solution

The fourth proportional to 311,947.40, 467,921.10 and 193,233.80 is: 289,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,947.40 : 467,921.10 = 193,233.80 : x
  2. Step 2: Convert to fraction form
    311,947.40/467,921.10 = 193,233.80/x
  3. Step 3: Cross multiply
    311,947.40x = 467,921.10 × 193,233.80
  4. Step 4: Simplify right side
    311,947.40x = 90,418,172,253.18
  5. Step 5: Solve for x
    x = 90,418,172,253.18/311,947.40
  6. Step 6: Final answer
    x = 289,850.70

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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.