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Finding the Fourth Proportional to 251,942.40, 378,059.40 and 94,186.80

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Solution

The fourth proportional to 251,942.40, 378,059.40 and 94,186.80 is: 141,334.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,942.40 : 378,059.40 = 94,186.80 : x
  2. Step 2: Convert to fraction form
    251,942.40/378,059.40 = 94,186.80/x
  3. Step 3: Cross multiply
    251,942.40x = 378,059.40 × 94,186.80
  4. Step 4: Simplify right side
    251,942.40x = 35,608,205,095.92
  5. Step 5: Solve for x
    x = 35,608,205,095.92/251,942.40
  6. Step 6: Final answer
    x = 141,334.71

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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.