Home / 221,921.56-332,879.58-211,163.35

Finding the Fourth Proportional to 221,921.56, 332,879.58 and 211,163.35

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Solution

The fourth proportional to 221,921.56, 332,879.58 and 211,163.35 is: 316,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,921.56 : 332,879.58 = 211,163.35 : x
  2. Step 2: Convert to fraction form
    221,921.56/332,879.58 = 211,163.35/x
  3. Step 3: Cross multiply
    221,921.56x = 332,879.58 × 211,163.35
  4. Step 4: Simplify right side
    221,921.56x = 70,291,967,259.39
  5. Step 5: Solve for x
    x = 70,291,967,259.39/221,921.56
  6. Step 6: Final answer
    x = 316,742.40

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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.