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Finding the Fourth Proportional to 273,715.88, 412,679.39 and 268,817

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Solution

The fourth proportional to 273,715.88, 412,679.39 and 268,817 is: 405,293.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,715.88 : 412,679.39 = 268,817 : x
  2. Step 2: Convert to fraction form
    273,715.88/412,679.39 = 268,817/x
  3. Step 3: Cross multiply
    273,715.88x = 412,679.39 × 268,817
  4. Step 4: Simplify right side
    273,715.88x = 110,935,235,581.63
  5. Step 5: Solve for x
    x = 110,935,235,581.63/273,715.88
  6. Step 6: Final answer
    x = 405,293.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.