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Finding the Fourth Proportional to 225,328.78, 339,574.83 and 202,861.91

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Solution

The fourth proportional to 225,328.78, 339,574.83 and 202,861.91 is: 305,716.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,328.78 : 339,574.83 = 202,861.91 : x
  2. Step 2: Convert to fraction form
    225,328.78/339,574.83 = 202,861.91/x
  3. Step 3: Cross multiply
    225,328.78x = 339,574.83 × 202,861.91
  4. Step 4: Simplify right side
    225,328.78x = 68,886,796,903.85
  5. Step 5: Solve for x
    x = 68,886,796,903.85/225,328.78
  6. Step 6: Final answer
    x = 305,716.82

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.