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Finding the Fourth Proportional to 279,227.02, 418,715.97 and 79,500.69

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Solution

The fourth proportional to 279,227.02, 418,715.97 and 79,500.69 is: 119,215.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,227.02 : 418,715.97 = 79,500.69 : x
  2. Step 2: Convert to fraction form
    279,227.02/418,715.97 = 79,500.69/x
  3. Step 3: Cross multiply
    279,227.02x = 418,715.97 × 79,500.69
  4. Step 4: Simplify right side
    279,227.02x = 33,288,208,529.02
  5. Step 5: Solve for x
    x = 33,288,208,529.02/279,227.02
  6. Step 6: Final answer
    x = 119,215.57

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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.