Home / 326,151.05-450,137.66-198,900.45

Finding the Fourth Proportional to 326,151.05, 450,137.66 and 198,900.45

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Solution

The fourth proportional to 326,151.05, 450,137.66 and 198,900.45 is: 274,512.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,151.05 : 450,137.66 = 198,900.45 : x
  2. Step 2: Convert to fraction form
    326,151.05/450,137.66 = 198,900.45/x
  3. Step 3: Cross multiply
    326,151.05x = 450,137.66 × 198,900.45
  4. Step 4: Simplify right side
    326,151.05x = 89,532,582,141.44
  5. Step 5: Solve for x
    x = 89,532,582,141.44/326,151.05
  6. Step 6: Final answer
    x = 274,512.63

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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.