Home / 259,371.91-389,025.06-69,847.40

Finding the Fourth Proportional to 259,371.91, 389,025.06 and 69,847.40

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Solution

The fourth proportional to 259,371.91, 389,025.06 and 69,847.40 is: 104,762.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,371.91 : 389,025.06 = 69,847.40 : x
  2. Step 2: Convert to fraction form
    259,371.91/389,025.06 = 69,847.40/x
  3. Step 3: Cross multiply
    259,371.91x = 389,025.06 × 69,847.40
  4. Step 4: Simplify right side
    259,371.91x = 27,172,388,975.84
  5. Step 5: Solve for x
    x = 27,172,388,975.84/259,371.91
  6. Step 6: Final answer
    x = 104,762.27

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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.