Home / 259,351.24-388,325.40-134,429.80

Finding the Fourth Proportional to 259,351.24, 388,325.40 and 134,429.80

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Solution

The fourth proportional to 259,351.24, 388,325.40 and 134,429.80 is: 201,281.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,351.24 : 388,325.40 = 134,429.80 : x
  2. Step 2: Convert to fraction form
    259,351.24/388,325.40 = 134,429.80/x
  3. Step 3: Cross multiply
    259,351.24x = 388,325.40 × 134,429.80
  4. Step 4: Simplify right side
    259,351.24x = 52,202,505,856.92
  5. Step 5: Solve for x
    x = 52,202,505,856.92/259,351.24
  6. Step 6: Final answer
    x = 201,281.11

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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.