Home / 259,039.28-388,328.40-101,231.84

Finding the Fourth Proportional to 259,039.28, 388,328.40 and 101,231.84

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Solution

The fourth proportional to 259,039.28, 388,328.40 and 101,231.84 is: 151,757.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,039.28 : 388,328.40 = 101,231.84 : x
  2. Step 2: Convert to fraction form
    259,039.28/388,328.40 = 101,231.84/x
  3. Step 3: Cross multiply
    259,039.28x = 388,328.40 × 101,231.84
  4. Step 4: Simplify right side
    259,039.28x = 39,311,198,456.26
  5. Step 5: Solve for x
    x = 39,311,198,456.26/259,039.28
  6. Step 6: Final answer
    x = 151,757.67

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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.