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Finding the Fourth Proportional to 379,065.66, 523,088.10 and 206,949.30

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Solution

The fourth proportional to 379,065.66, 523,088.10 and 206,949.30 is: 285,577.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,065.66 : 523,088.10 = 206,949.30 : x
  2. Step 2: Convert to fraction form
    379,065.66/523,088.10 = 206,949.30/x
  3. Step 3: Cross multiply
    379,065.66x = 523,088.10 × 206,949.30
  4. Step 4: Simplify right side
    379,065.66x = 108,252,716,133.33
  5. Step 5: Solve for x
    x = 108,252,716,133.33/379,065.66
  6. Step 6: Final answer
    x = 285,577.74

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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.