Home / 225,666.10-338,920.77-198,658.02

Finding the Fourth Proportional to 225,666.10, 338,920.77 and 198,658.02

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Solution

The fourth proportional to 225,666.10, 338,920.77 and 198,658.02 is: 298,358.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,666.10 : 338,920.77 = 198,658.02 : x
  2. Step 2: Convert to fraction form
    225,666.10/338,920.77 = 198,658.02/x
  3. Step 3: Cross multiply
    225,666.10x = 338,920.77 × 198,658.02
  4. Step 4: Simplify right side
    225,666.10x = 67,329,329,105.08
  5. Step 5: Solve for x
    x = 67,329,329,105.08/225,666.10
  6. Step 6: Final answer
    x = 298,358.19

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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.