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Finding the Fourth Proportional to 271,757.98, 405,806.95 and 221,936.91

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Solution

The fourth proportional to 271,757.98, 405,806.95 and 221,936.91 is: 331,410.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,757.98 : 405,806.95 = 221,936.91 : x
  2. Step 2: Convert to fraction form
    271,757.98/405,806.95 = 221,936.91/x
  3. Step 3: Cross multiply
    271,757.98x = 405,806.95 × 221,936.91
  4. Step 4: Simplify right side
    271,757.98x = 90,063,540,539.52
  5. Step 5: Solve for x
    x = 90,063,540,539.52/271,757.98
  6. Step 6: Final answer
    x = 331,410.84

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1.5x scale

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.