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Finding the Fourth Proportional to 248,983.78, 343,597.56 and 135,806.50

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Solution

The fourth proportional to 248,983.78, 343,597.56 and 135,806.50 is: 187,412.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,983.78 : 343,597.56 = 135,806.50 : x
  2. Step 2: Convert to fraction form
    248,983.78/343,597.56 = 135,806.50/x
  3. Step 3: Cross multiply
    248,983.78x = 343,597.56 × 135,806.50
  4. Step 4: Simplify right side
    248,983.78x = 46,662,782,032.14
  5. Step 5: Solve for x
    x = 46,662,782,032.14/248,983.78
  6. Step 6: Final answer
    x = 187,412.94

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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.