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Finding the Fourth Proportional to 248,138.88, 342,435.24 and 134,961.96

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Solution

The fourth proportional to 248,138.88, 342,435.24 and 134,961.96 is: 186,249.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,138.88 : 342,435.24 = 134,961.96 : x
  2. Step 2: Convert to fraction form
    248,138.88/342,435.24 = 134,961.96/x
  3. Step 3: Cross multiply
    248,138.88x = 342,435.24 × 134,961.96
  4. Step 4: Simplify right side
    248,138.88x = 46,215,731,163.47
  5. Step 5: Solve for x
    x = 46,215,731,163.47/248,138.88
  6. Step 6: Final answer
    x = 186,249.45

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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.