Home / 385,496.07-532,040.22-222,121.28

Finding the Fourth Proportional to 385,496.07, 532,040.22 and 222,121.28

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Solution

The fourth proportional to 385,496.07, 532,040.22 and 222,121.28 is: 306,559.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,496.07 : 532,040.22 = 222,121.28 : x
  2. Step 2: Convert to fraction form
    385,496.07/532,040.22 = 222,121.28/x
  3. Step 3: Cross multiply
    385,496.07x = 532,040.22 × 222,121.28
  4. Step 4: Simplify right side
    385,496.07x = 118,177,456,201.68
  5. Step 5: Solve for x
    x = 118,177,456,201.68/385,496.07
  6. Step 6: Final answer
    x = 306,559.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.