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Finding the Fourth Proportional to 279,298.26, 418,966.83 and 92,440.98

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Solution

The fourth proportional to 279,298.26, 418,966.83 and 92,440.98 is: 138,667.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,298.26 : 418,966.83 = 92,440.98 : x
  2. Step 2: Convert to fraction form
    279,298.26/418,966.83 = 92,440.98/x
  3. Step 3: Cross multiply
    279,298.26x = 418,966.83 × 92,440.98
  4. Step 4: Simplify right side
    279,298.26x = 38,729,704,352.69
  5. Step 5: Solve for x
    x = 38,729,704,352.69/279,298.26
  6. Step 6: Final answer
    x = 138,667.90

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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.