Home / 221,482.08-332,247.96-81,240.30

Finding the Fourth Proportional to 221,482.08, 332,247.96 and 81,240.30

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Solution

The fourth proportional to 221,482.08, 332,247.96 and 81,240.30 is: 121,869.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,482.08 : 332,247.96 = 81,240.30 : x
  2. Step 2: Convert to fraction form
    221,482.08/332,247.96 = 81,240.30/x
  3. Step 3: Cross multiply
    221,482.08x = 332,247.96 × 81,240.30
  4. Step 4: Simplify right side
    221,482.08x = 26,991,923,944.79
  5. Step 5: Solve for x
    x = 26,991,923,944.79/221,482.08
  6. Step 6: Final answer
    x = 121,869.56

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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.