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Finding the Fourth Proportional to 275,332.47, 413,018.60 and 115,247.41

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Solution

The fourth proportional to 275,332.47, 413,018.60 and 115,247.41 is: 172,879.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,332.47 : 413,018.60 = 115,247.41 : x
  2. Step 2: Convert to fraction form
    275,332.47/413,018.60 = 115,247.41/x
  3. Step 3: Cross multiply
    275,332.47x = 413,018.60 × 115,247.41
  4. Step 4: Simplify right side
    275,332.47x = 47,599,322,323.04
  5. Step 5: Solve for x
    x = 47,599,322,323.04/275,332.47
  6. Step 6: Final answer
    x = 172,879.44

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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.