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Finding the Fourth Proportional to 225,453, 311,134.92 and 124,851

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Solution

The fourth proportional to 225,453, 311,134.92 and 124,851 is: 172,299.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,453 : 311,134.92 = 124,851 : x
  2. Step 2: Convert to fraction form
    225,453/311,134.92 = 124,851/x
  3. Step 3: Cross multiply
    225,453x = 311,134.92 × 124,851
  4. Step 4: Simplify right side
    225,453x = 38,845,505,896.92
  5. Step 5: Solve for x
    x = 38,845,505,896.92/225,453
  6. Step 6: Final answer
    x = 172,299.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.