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Finding the Fourth Proportional to 311,365, 467,076.66 and 100,946.44

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Solution

The fourth proportional to 311,365, 467,076.66 and 100,946.44 is: 151,429.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,365 : 467,076.66 = 100,946.44 : x
  2. Step 2: Convert to fraction form
    311,365/467,076.66 = 100,946.44/x
  3. Step 3: Cross multiply
    311,365x = 467,076.66 × 100,946.44
  4. Step 4: Simplify right side
    311,365x = 47,149,726,034.09
  5. Step 5: Solve for x
    x = 47,149,726,034.09/311,365
  6. Step 6: Final answer
    x = 151,429.11

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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.