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Finding the Fourth Proportional to 254,418.52, 351,103.89 and 139,708.48

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Solution

The fourth proportional to 254,418.52, 351,103.89 and 139,708.48 is: 192,801.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,418.52 : 351,103.89 = 139,708.48 : x
  2. Step 2: Convert to fraction form
    254,418.52/351,103.89 = 139,708.48/x
  3. Step 3: Cross multiply
    254,418.52x = 351,103.89 × 139,708.48
  4. Step 4: Simplify right side
    254,418.52x = 49,052,190,793.99
  5. Step 5: Solve for x
    x = 49,052,190,793.99/254,418.52
  6. Step 6: Final answer
    x = 192,801.18

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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.