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Finding the Fourth Proportional to 253,450.48, 349,760.73 and 137,163.71

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Solution

The fourth proportional to 253,450.48, 349,760.73 and 137,163.71 is: 189,285.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,450.48 : 349,760.73 = 137,163.71 : x
  2. Step 2: Convert to fraction form
    253,450.48/349,760.73 = 137,163.71/x
  3. Step 3: Cross multiply
    253,450.48x = 349,760.73 × 137,163.71
  4. Step 4: Simplify right side
    253,450.48x = 47,974,479,339.11
  5. Step 5: Solve for x
    x = 47,974,479,339.11/253,450.48
  6. Step 6: Final answer
    x = 189,285.42

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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.