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Finding the Fourth Proportional to 271,365.92, 405,072.31 and 251,354.78

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Solution

The fourth proportional to 271,365.92, 405,072.31 and 251,354.78 is: 375,201.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,365.92 : 405,072.31 = 251,354.78 : x
  2. Step 2: Convert to fraction form
    271,365.92/405,072.31 = 251,354.78/x
  3. Step 3: Cross multiply
    271,365.92x = 405,072.31 × 251,354.78
  4. Step 4: Simplify right side
    271,365.92x = 101,816,861,364.14
  5. Step 5: Solve for x
    x = 101,816,861,364.14/271,365.92
  6. Step 6: Final answer
    x = 375,201.36

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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.