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Finding the Fourth Proportional to 248,383.97, 342,769.88 and 135,206.72

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Solution

The fourth proportional to 248,383.97, 342,769.88 and 135,206.72 is: 186,585.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,383.97 : 342,769.88 = 135,206.72 : x
  2. Step 2: Convert to fraction form
    248,383.97/342,769.88 = 135,206.72/x
  3. Step 3: Cross multiply
    248,383.97x = 342,769.88 × 135,206.72
  4. Step 4: Simplify right side
    248,383.97x = 46,344,790,338.61
  5. Step 5: Solve for x
    x = 46,344,790,338.61/248,383.97
  6. Step 6: Final answer
    x = 186,585.27

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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.