Home / 339,320.80-508,981.20-199,237.60

Finding the Fourth Proportional to 339,320.80, 508,981.20 and 199,237.60

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Solution

The fourth proportional to 339,320.80, 508,981.20 and 199,237.60 is: 298,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,320.80 : 508,981.20 = 199,237.60 : x
  2. Step 2: Convert to fraction form
    339,320.80/508,981.20 = 199,237.60/x
  3. Step 3: Cross multiply
    339,320.80x = 508,981.20 × 199,237.60
  4. Step 4: Simplify right side
    339,320.80x = 101,408,192,733.12
  5. Step 5: Solve for x
    x = 101,408,192,733.12/339,320.80
  6. Step 6: Final answer
    x = 298,856.40

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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.