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Finding the Fourth Proportional to 271,141.58, 406,710.32 and 81,601.13

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Solution

The fourth proportional to 271,141.58, 406,710.32 and 81,601.13 is: 122,401.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,141.58 : 406,710.32 = 81,601.13 : x
  2. Step 2: Convert to fraction form
    271,141.58/406,710.32 = 81,601.13/x
  3. Step 3: Cross multiply
    271,141.58x = 406,710.32 × 81,601.13
  4. Step 4: Simplify right side
    271,141.58x = 33,188,019,253.10
  5. Step 5: Solve for x
    x = 33,188,019,253.10/271,141.58
  6. Step 6: Final answer
    x = 122,401.07

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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.