Home / 399,648.06-599,458.20-100,131.18

Finding the Fourth Proportional to 399,648.06, 599,458.20 and 100,131.18

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Solution

The fourth proportional to 399,648.06, 599,458.20 and 100,131.18 is: 150,193.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,648.06 : 599,458.20 = 100,131.18 : x
  2. Step 2: Convert to fraction form
    399,648.06/599,458.20 = 100,131.18/x
  3. Step 3: Cross multiply
    399,648.06x = 599,458.20 × 100,131.18
  4. Step 4: Simplify right side
    399,648.06x = 60,024,456,926.68
  5. Step 5: Solve for x
    x = 60,024,456,926.68/399,648.06
  6. Step 6: Final answer
    x = 150,193.29

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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.