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Finding the Fourth Proportional to 379,295.11, 523,437.44 and 207,220.33

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Solution

The fourth proportional to 379,295.11, 523,437.44 and 207,220.33 is: 285,969.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,295.11 : 523,437.44 = 207,220.33 : x
  2. Step 2: Convert to fraction form
    379,295.11/523,437.44 = 207,220.33/x
  3. Step 3: Cross multiply
    379,295.11x = 523,437.44 × 207,220.33
  4. Step 4: Simplify right side
    379,295.11x = 108,466,876,890.63
  5. Step 5: Solve for x
    x = 108,466,876,890.63/379,295.11
  6. Step 6: Final answer
    x = 285,969.62

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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.