Home / 259,729.20-388,937.70-207,241.20

Finding the Fourth Proportional to 259,729.20, 388,937.70 and 207,241.20

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Solution

The fourth proportional to 259,729.20, 388,937.70 and 207,241.20 is: 310,338.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,729.20 : 388,937.70 = 207,241.20 : x
  2. Step 2: Convert to fraction form
    259,729.20/388,937.70 = 207,241.20/x
  3. Step 3: Cross multiply
    259,729.20x = 388,937.70 × 207,241.20
  4. Step 4: Simplify right side
    259,729.20x = 80,603,915,673.24
  5. Step 5: Solve for x
    x = 80,603,915,673.24/259,729.20
  6. Step 6: Final answer
    x = 310,338.29

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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.