Home / 672,111.80-1,008,263.70-198,735.80

Finding the Fourth Proportional to 672,111.80, 1,008,263.70 and 198,735.80

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Solution

The fourth proportional to 672,111.80, 1,008,263.70 and 198,735.80 is: 298,132.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,111.80 : 1,008,263.70 = 198,735.80 : x
  2. Step 2: Convert to fraction form
    672,111.80/1,008,263.70 = 198,735.80/x
  3. Step 3: Cross multiply
    672,111.80x = 1,008,263.70 × 198,735.80
  4. Step 4: Simplify right side
    672,111.80x = 200,378,093,030.46
  5. Step 5: Solve for x
    x = 200,378,093,030.46/672,111.80
  6. Step 6: Final answer
    x = 298,132.09

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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.