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Finding the Fourth Proportional to 248,326.75, 342,690.92 and 135,150.31

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Solution

The fourth proportional to 248,326.75, 342,690.92 and 135,150.31 is: 186,507.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,326.75 : 342,690.92 = 135,150.31 : x
  2. Step 2: Convert to fraction form
    248,326.75/342,690.92 = 135,150.31/x
  3. Step 3: Cross multiply
    248,326.75x = 342,690.92 × 135,150.31
  4. Step 4: Simplify right side
    248,326.75x = 46,314,784,072.19
  5. Step 5: Solve for x
    x = 46,314,784,072.19/248,326.75
  6. Step 6: Final answer
    x = 186,507.43

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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.