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Finding the Fourth Proportional to 279,080.17, 418,830.89 and 204,393.94

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Solution

The fourth proportional to 279,080.17, 418,830.89 and 204,393.94 is: 306,745.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,080.17 : 418,830.89 = 204,393.94 : x
  2. Step 2: Convert to fraction form
    279,080.17/418,830.89 = 204,393.94/x
  3. Step 3: Cross multiply
    279,080.17x = 418,830.89 × 204,393.94
  4. Step 4: Simplify right side
    279,080.17x = 85,606,497,538.95
  5. Step 5: Solve for x
    x = 85,606,497,538.95/279,080.17
  6. Step 6: Final answer
    x = 306,745.19

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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.