Home / 271,749.11-405,793.69-221,928.03

Finding the Fourth Proportional to 271,749.11, 405,793.69 and 221,928.03

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Solution

The fourth proportional to 271,749.11, 405,793.69 and 221,928.03 is: 331,397.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,749.11 : 405,793.69 = 221,928.03 : x
  2. Step 2: Convert to fraction form
    271,749.11/405,793.69 = 221,928.03/x
  3. Step 3: Cross multiply
    271,749.11x = 405,793.69 × 221,928.03
  4. Step 4: Simplify right side
    271,749.11x = 90,056,994,901.66
  5. Step 5: Solve for x
    x = 90,056,994,901.66/271,749.11
  6. Step 6: Final answer
    x = 331,397.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.