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Finding the Fourth Proportional to 279,966.20, 419,949.30 and 201,234.20

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Solution

The fourth proportional to 279,966.20, 419,949.30 and 201,234.20 is: 301,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,966.20 : 419,949.30 = 201,234.20 : x
  2. Step 2: Convert to fraction form
    279,966.20/419,949.30 = 201,234.20/x
  3. Step 3: Cross multiply
    279,966.20x = 419,949.30 × 201,234.20
  4. Step 4: Simplify right side
    279,966.20x = 84,508,161,426.06
  5. Step 5: Solve for x
    x = 84,508,161,426.06/279,966.20
  6. Step 6: Final answer
    x = 301,851.30

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1.5x scale

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.