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Finding the Fourth Proportional to 253,606.50, 349,974.46 and 137,319.41

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Solution

The fourth proportional to 253,606.50, 349,974.46 and 137,319.41 is: 189,499.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,606.50 : 349,974.46 = 137,319.41 : x
  2. Step 2: Convert to fraction form
    253,606.50/349,974.46 = 137,319.41/x
  3. Step 3: Cross multiply
    253,606.50x = 349,974.46 × 137,319.41
  4. Step 4: Simplify right side
    253,606.50x = 48,058,287,408.85
  5. Step 5: Solve for x
    x = 48,058,287,408.85/253,606.50
  6. Step 6: Final answer
    x = 189,499.43

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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.