Home / 293,049.33-439,583.12-100,921.78

Finding the Fourth Proportional to 293,049.33, 439,583.12 and 100,921.78

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Solution

The fourth proportional to 293,049.33, 439,583.12 and 100,921.78 is: 151,385.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,049.33 : 439,583.12 = 100,921.78 : x
  2. Step 2: Convert to fraction form
    293,049.33/439,583.12 = 100,921.78/x
  3. Step 3: Cross multiply
    293,049.33x = 439,583.12 × 100,921.78
  4. Step 4: Simplify right side
    293,049.33x = 44,363,511,351.68
  5. Step 5: Solve for x
    x = 44,363,511,351.68/293,049.33
  6. Step 6: Final answer
    x = 151,385.82

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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.