Home / 221,903.64-305,581.98-192,819.78

Finding the Fourth Proportional to 221,903.64, 305,581.98 and 192,819.78

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Solution

The fourth proportional to 221,903.64, 305,581.98 and 192,819.78 is: 265,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,903.64 : 305,581.98 = 192,819.78 : x
  2. Step 2: Convert to fraction form
    221,903.64/305,581.98 = 192,819.78/x
  3. Step 3: Cross multiply
    221,903.64x = 305,581.98 × 192,819.78
  4. Step 4: Simplify right side
    221,903.64x = 58,922,250,155.56
  5. Step 5: Solve for x
    x = 58,922,250,155.56/221,903.64
  6. Step 6: Final answer
    x = 265,530.80

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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.