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Finding the Fourth Proportional to 379,211.44, 523,308.68 and 207,129.52

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Solution

The fourth proportional to 379,211.44, 523,308.68 and 207,129.52 is: 285,837.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,211.44 : 523,308.68 = 207,129.52 : x
  2. Step 2: Convert to fraction form
    379,211.44/523,308.68 = 207,129.52/x
  3. Step 3: Cross multiply
    379,211.44x = 523,308.68 × 207,129.52
  4. Step 4: Simplify right side
    379,211.44x = 108,392,673,151.85
  5. Step 5: Solve for x
    x = 108,392,673,151.85/379,211.44
  6. Step 6: Final answer
    x = 285,837.03

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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.