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Finding the Fourth Proportional to 253,419.84, 349,717.44 and 140,249.28

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Solution

The fourth proportional to 253,419.84, 349,717.44 and 140,249.28 is: 193,542.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,419.84 : 349,717.44 = 140,249.28 : x
  2. Step 2: Convert to fraction form
    253,419.84/349,717.44 = 140,249.28/x
  3. Step 3: Cross multiply
    253,419.84x = 349,717.44 × 140,249.28
  4. Step 4: Simplify right side
    253,419.84x = 49,047,619,163.44
  5. Step 5: Solve for x
    x = 49,047,619,163.44/253,419.84
  6. Step 6: Final answer
    x = 193,542.93

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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.