Home / 221,863.44-306,170.76-121,261.36

Finding the Fourth Proportional to 221,863.44, 306,170.76 and 121,261.36

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Solution

The fourth proportional to 221,863.44, 306,170.76 and 121,261.36 is: 167,340.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,863.44 : 306,170.76 = 121,261.36 : x
  2. Step 2: Convert to fraction form
    221,863.44/306,170.76 = 121,261.36/x
  3. Step 3: Cross multiply
    221,863.44x = 306,170.76 × 121,261.36
  4. Step 4: Simplify right side
    221,863.44x = 37,126,682,749.83
  5. Step 5: Solve for x
    x = 37,126,682,749.83/221,863.44
  6. Step 6: Final answer
    x = 167,340.25

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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.