Home / 221,676.15-305,268.77-192,591.07

Finding the Fourth Proportional to 221,676.15, 305,268.77 and 192,591.07

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Solution

The fourth proportional to 221,676.15, 305,268.77 and 192,591.07 is: 265,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,676.15 : 305,268.77 = 192,591.07 : x
  2. Step 2: Convert to fraction form
    221,676.15/305,268.77 = 192,591.07/x
  3. Step 3: Cross multiply
    221,676.15x = 305,268.77 × 192,591.07
  4. Step 4: Simplify right side
    221,676.15x = 58,792,039,051.88
  5. Step 5: Solve for x
    x = 58,792,039,051.88/221,676.15
  6. Step 6: Final answer
    x = 265,215.90

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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.