Home / 672,108.90-1,008,360.18-198,806.86

Finding the Fourth Proportional to 672,108.90, 1,008,360.18 and 198,806.86

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Solution

The fourth proportional to 672,108.90, 1,008,360.18 and 198,806.86 is: 298,268.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,108.90 : 1,008,360.18 = 198,806.86 : x
  2. Step 2: Convert to fraction form
    672,108.90/1,008,360.18 = 198,806.86/x
  3. Step 3: Cross multiply
    672,108.90x = 1,008,360.18 × 198,806.86
  4. Step 4: Simplify right side
    672,108.90x = 200,468,921,134.84
  5. Step 5: Solve for x
    x = 200,468,921,134.84/672,108.90
  6. Step 6: Final answer
    x = 298,268.51

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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.