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Finding the Fourth Proportional to 248,696.84, 343,200.56 and 135,519.60

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Solution

The fourth proportional to 248,696.84, 343,200.56 and 135,519.60 is: 187,016.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,696.84 : 343,200.56 = 135,519.60 : x
  2. Step 2: Convert to fraction form
    248,696.84/343,200.56 = 135,519.60/x
  3. Step 3: Cross multiply
    248,696.84x = 343,200.56 × 135,519.60
  4. Step 4: Simplify right side
    248,696.84x = 46,510,402,610.98
  5. Step 5: Solve for x
    x = 46,510,402,610.98/248,696.84
  6. Step 6: Final answer
    x = 187,016.46

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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.