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Finding the Fourth Proportional to 351,472.49, 485,049.69 and 206,284.56

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Solution

The fourth proportional to 351,472.49, 485,049.69 and 206,284.56 is: 284,683.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,472.49 : 485,049.69 = 206,284.56 : x
  2. Step 2: Convert to fraction form
    351,472.49/485,049.69 = 206,284.56/x
  3. Step 3: Cross multiply
    351,472.49x = 485,049.69 × 206,284.56
  4. Step 4: Simplify right side
    351,472.49x = 100,058,262,034.63
  5. Step 5: Solve for x
    x = 100,058,262,034.63/351,472.49
  6. Step 6: Final answer
    x = 284,683.06

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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.