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Finding the Fourth Proportional to 271,463.88, 407,198.94 and 81,925.90

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Solution

The fourth proportional to 271,463.88, 407,198.94 and 81,925.90 is: 122,889.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,463.88 : 407,198.94 = 81,925.90 : x
  2. Step 2: Convert to fraction form
    271,463.88/407,198.94 = 81,925.90/x
  3. Step 3: Cross multiply
    271,463.88x = 407,198.94 × 81,925.90
  4. Step 4: Simplify right side
    271,463.88x = 33,360,139,638.55
  5. Step 5: Solve for x
    x = 33,360,139,638.55/271,463.88
  6. Step 6: Final answer
    x = 122,889.79

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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.