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Finding the Fourth Proportional to 279,226.02, 418,714.47 and 79,499.69

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Solution

The fourth proportional to 279,226.02, 418,714.47 and 79,499.69 is: 119,214.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,226.02 : 418,714.47 = 79,499.69 : x
  2. Step 2: Convert to fraction form
    279,226.02/418,714.47 = 79,499.69/x
  3. Step 3: Cross multiply
    279,226.02x = 418,714.47 × 79,499.69
  4. Step 4: Simplify right side
    279,226.02x = 33,287,668,469.94
  5. Step 5: Solve for x
    x = 33,287,668,469.94/279,226.02
  6. Step 6: Final answer
    x = 119,214.06

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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.