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Finding the Fourth Proportional to 253,608.50, 349,977.22 and 137,321.41

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Solution

The fourth proportional to 253,608.50, 349,977.22 and 137,321.41 is: 189,502.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,608.50 : 349,977.22 = 137,321.41 : x
  2. Step 2: Convert to fraction form
    253,608.50/349,977.22 = 137,321.41/x
  3. Step 3: Cross multiply
    253,608.50x = 349,977.22 × 137,321.41
  4. Step 4: Simplify right side
    253,608.50x = 48,059,365,318.28
  5. Step 5: Solve for x
    x = 48,059,365,318.28/253,608.50
  6. Step 6: Final answer
    x = 189,502.19

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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.