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Finding the Fourth Proportional to 248,952.78, 343,544.43 and 135,768.78

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Solution

The fourth proportional to 248,952.78, 343,544.43 and 135,768.78 is: 187,355.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,952.78 : 343,544.43 = 135,768.78 : x
  2. Step 2: Convert to fraction form
    248,952.78/343,544.43 = 135,768.78/x
  3. Step 3: Cross multiply
    248,952.78x = 343,544.43 × 135,768.78
  4. Step 4: Simplify right side
    248,952.78x = 46,642,608,136.90
  5. Step 5: Solve for x
    x = 46,642,608,136.90/248,952.78
  6. Step 6: Final answer
    x = 187,355.24

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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.