Home / 311,837.47-467,752.09-75,178.25

Finding the Fourth Proportional to 311,837.47, 467,752.09 and 75,178.25

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Solution

The fourth proportional to 311,837.47, 467,752.09 and 75,178.25 is: 112,766.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,837.47 : 467,752.09 = 75,178.25 : x
  2. Step 2: Convert to fraction form
    311,837.47/467,752.09 = 75,178.25/x
  3. Step 3: Cross multiply
    311,837.47x = 467,752.09 × 75,178.25
  4. Step 4: Simplify right side
    311,837.47x = 35,164,783,560.04
  5. Step 5: Solve for x
    x = 35,164,783,560.04/311,837.47
  6. Step 6: Final answer
    x = 112,766.38

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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.