Home / 672,129.40-1,008,194.10-198,772.60

Finding the Fourth Proportional to 672,129.40, 1,008,194.10 and 198,772.60

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Solution

The fourth proportional to 672,129.40, 1,008,194.10 and 198,772.60 is: 298,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,129.40 : 1,008,194.10 = 198,772.60 : x
  2. Step 2: Convert to fraction form
    672,129.40/1,008,194.10 = 198,772.60/x
  3. Step 3: Cross multiply
    672,129.40x = 1,008,194.10 × 198,772.60
  4. Step 4: Simplify right side
    672,129.40x = 200,401,362,561.66
  5. Step 5: Solve for x
    x = 200,401,362,561.66/672,129.40
  6. Step 6: Final answer
    x = 298,158.90

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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.