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Finding the Fourth Proportional to 248,057.28, 371,657.97 and 135,818.28

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Solution

The fourth proportional to 248,057.28, 371,657.97 and 135,818.28 is: 203,493.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,057.28 : 371,657.97 = 135,818.28 : x
  2. Step 2: Convert to fraction form
    248,057.28/371,657.97 = 135,818.28/x
  3. Step 3: Cross multiply
    248,057.28x = 371,657.97 × 135,818.28
  4. Step 4: Simplify right side
    248,057.28x = 50,477,946,233.69
  5. Step 5: Solve for x
    x = 50,477,946,233.69/248,057.28
  6. Step 6: Final answer
    x = 203,493.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.