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Finding the Fourth Proportional to 253,558.62, 349,934.37 and 140,381.37

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Solution

The fourth proportional to 253,558.62, 349,934.37 and 140,381.37 is: 193,739.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,558.62 : 349,934.37 = 140,381.37 : x
  2. Step 2: Convert to fraction form
    253,558.62/349,934.37 = 140,381.37/x
  3. Step 3: Cross multiply
    253,558.62x = 349,934.37 × 140,381.37
  4. Step 4: Simplify right side
    253,558.62x = 49,124,263,819.11
  5. Step 5: Solve for x
    x = 49,124,263,819.11/253,558.62
  6. Step 6: Final answer
    x = 193,739.28

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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.