Home / 221,209.64-331,921.26-108,828.92

Finding the Fourth Proportional to 221,209.64, 331,921.26 and 108,828.92

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Solution

The fourth proportional to 221,209.64, 331,921.26 and 108,828.92 is: 163,295.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,209.64 : 331,921.26 = 108,828.92 : x
  2. Step 2: Convert to fraction form
    221,209.64/331,921.26 = 108,828.92/x
  3. Step 3: Cross multiply
    221,209.64x = 331,921.26 × 108,828.92
  4. Step 4: Simplify right side
    221,209.64x = 36,122,632,250.84
  5. Step 5: Solve for x
    x = 36,122,632,250.84/221,209.64
  6. Step 6: Final answer
    x = 163,295.92

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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.