Home / 672,107.40-1,008,357.92-198,805.36

Finding the Fourth Proportional to 672,107.40, 1,008,357.92 and 198,805.36

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Solution

The fourth proportional to 672,107.40, 1,008,357.92 and 198,805.36 is: 298,266.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,107.40 : 1,008,357.92 = 198,805.36 : x
  2. Step 2: Convert to fraction form
    672,107.40/1,008,357.92 = 198,805.36/x
  3. Step 3: Cross multiply
    672,107.40x = 1,008,357.92 × 198,805.36
  4. Step 4: Simplify right side
    672,107.40x = 200,466,959,294.45
  5. Step 5: Solve for x
    x = 200,466,959,294.45/672,107.40
  6. Step 6: Final answer
    x = 298,266.26

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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.