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Finding the Fourth Proportional to 271,364.92, 405,070.82 and 251,353.78

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Solution

The fourth proportional to 271,364.92, 405,070.82 and 251,353.78 is: 375,199.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,364.92 : 405,070.82 = 251,353.78 : x
  2. Step 2: Convert to fraction form
    271,364.92/405,070.82 = 251,353.78/x
  3. Step 3: Cross multiply
    271,364.92x = 405,070.82 × 251,353.78
  4. Step 4: Simplify right side
    271,364.92x = 101,816,081,774.70
  5. Step 5: Solve for x
    x = 101,816,081,774.70/271,364.92
  6. Step 6: Final answer
    x = 375,199.87

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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.