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Finding the Fourth Proportional to 225,438.57, 311,101.43 and 124,834.41

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Solution

The fourth proportional to 225,438.57, 311,101.43 and 124,834.41 is: 172,269.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,438.57 : 311,101.43 = 124,834.41 : x
  2. Step 2: Convert to fraction form
    225,438.57/311,101.43 = 124,834.41/x
  3. Step 3: Cross multiply
    225,438.57x = 311,101.43 × 124,834.41
  4. Step 4: Simplify right side
    225,438.57x = 38,836,162,840.03
  5. Step 5: Solve for x
    x = 38,836,162,840.03/225,438.57
  6. Step 6: Final answer
    x = 172,269.38

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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.