Home / 231,917.10-320,199.12-178,105.56

Finding the Fourth Proportional to 231,917.10, 320,199.12 and 178,105.56

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Solution

The fourth proportional to 231,917.10, 320,199.12 and 178,105.56 is: 245,903.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,917.10 : 320,199.12 = 178,105.56 : x
  2. Step 2: Convert to fraction form
    231,917.10/320,199.12 = 178,105.56/x
  3. Step 3: Cross multiply
    231,917.10x = 320,199.12 × 178,105.56
  4. Step 4: Simplify right side
    231,917.10x = 57,029,243,579.11
  5. Step 5: Solve for x
    x = 57,029,243,579.11/231,917.10
  6. Step 6: Final answer
    x = 245,903.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.