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Finding the Fourth Proportional to 379,067.06, 523,112.22 and 217,953.60

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Solution

The fourth proportional to 379,067.06, 523,112.22 and 217,953.60 is: 300,775.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,067.06 : 523,112.22 = 217,953.60 : x
  2. Step 2: Convert to fraction form
    379,067.06/523,112.22 = 217,953.60/x
  3. Step 3: Cross multiply
    379,067.06x = 523,112.22 × 217,953.60
  4. Step 4: Simplify right side
    379,067.06x = 114,014,191,552.99
  5. Step 5: Solve for x
    x = 114,014,191,552.99/379,067.06
  6. Step 6: Final answer
    x = 300,775.79

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1.5x scale

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.