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Finding the Fourth Proportional to 279,250.23, 418,866.42 and 89,709.82

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Solution

The fourth proportional to 279,250.23, 418,866.42 and 89,709.82 is: 134,561.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,250.23 : 418,866.42 = 89,709.82 : x
  2. Step 2: Convert to fraction form
    279,250.23/418,866.42 = 89,709.82/x
  3. Step 3: Cross multiply
    279,250.23x = 418,866.42 × 89,709.82
  4. Step 4: Simplify right side
    279,250.23x = 37,576,431,142.24
  5. Step 5: Solve for x
    x = 37,576,431,142.24/279,250.23
  6. Step 6: Final answer
    x = 134,561.86

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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.