Home / 266,579.58-399,869.37-89,086.58

Finding the Fourth Proportional to 266,579.58, 399,869.37 and 89,086.58

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Solution

The fourth proportional to 266,579.58, 399,869.37 and 89,086.58 is: 133,629.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,579.58 : 399,869.37 = 89,086.58 : x
  2. Step 2: Convert to fraction form
    266,579.58/399,869.37 = 89,086.58/x
  3. Step 3: Cross multiply
    266,579.58x = 399,869.37 × 89,086.58
  4. Step 4: Simplify right side
    266,579.58x = 35,622,995,619.73
  5. Step 5: Solve for x
    x = 35,622,995,619.73/266,579.58
  6. Step 6: Final answer
    x = 133,629.87

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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.