Home / 221,600.44-305,440.38-156,986.76

Finding the Fourth Proportional to 221,600.44, 305,440.38 and 156,986.76

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Solution

The fourth proportional to 221,600.44, 305,440.38 and 156,986.76 is: 216,380.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,600.44 : 305,440.38 = 156,986.76 : x
  2. Step 2: Convert to fraction form
    221,600.44/305,440.38 = 156,986.76/x
  3. Step 3: Cross multiply
    221,600.44x = 305,440.38 × 156,986.76
  4. Step 4: Simplify right side
    221,600.44x = 47,950,095,629.37
  5. Step 5: Solve for x
    x = 47,950,095,629.37/221,600.44
  6. Step 6: Final answer
    x = 216,380.87

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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.