Home / 326,151.15-450,137.79-198,900.56

Finding the Fourth Proportional to 326,151.15, 450,137.79 and 198,900.56

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Solution

The fourth proportional to 326,151.15, 450,137.79 and 198,900.56 is: 274,512.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,151.15 : 450,137.79 = 198,900.56 : x
  2. Step 2: Convert to fraction form
    326,151.15/450,137.79 = 198,900.56/x
  3. Step 3: Cross multiply
    326,151.15x = 450,137.79 × 198,900.56
  4. Step 4: Simplify right side
    326,151.15x = 89,532,656,257.47
  5. Step 5: Solve for x
    x = 89,532,656,257.47/326,151.15
  6. Step 6: Final answer
    x = 274,512.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.