Home / 259,022.24-388,358.40-132,351.20

Finding the Fourth Proportional to 259,022.24, 388,358.40 and 132,351.20

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Solution

The fourth proportional to 259,022.24, 388,358.40 and 132,351.20 is: 198,437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,022.24 : 388,358.40 = 132,351.20 : x
  2. Step 2: Convert to fraction form
    259,022.24/388,358.40 = 132,351.20/x
  3. Step 3: Cross multiply
    259,022.24x = 388,358.40 × 132,351.20
  4. Step 4: Simplify right side
    259,022.24x = 51,399,700,270.08
  5. Step 5: Solve for x
    x = 51,399,700,270.08/259,022.24
  6. Step 6: Final answer
    x = 198,437.40

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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.