Home / 221,076.96-331,712.64-80,856.48

Finding the Fourth Proportional to 221,076.96, 331,712.64 and 80,856.48

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Solution

The fourth proportional to 221,076.96, 331,712.64 and 80,856.48 is: 121,320.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,076.96 : 331,712.64 = 80,856.48 : x
  2. Step 2: Convert to fraction form
    221,076.96/331,712.64 = 80,856.48/x
  3. Step 3: Cross multiply
    221,076.96x = 331,712.64 × 80,856.48
  4. Step 4: Simplify right side
    221,076.96x = 26,821,116,441.91
  5. Step 5: Solve for x
    x = 26,821,116,441.91/221,076.96
  6. Step 6: Final answer
    x = 121,320.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.