Home / 331,939.25-458,074.07-188,699.30

Finding the Fourth Proportional to 331,939.25, 458,074.07 and 188,699.30

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Solution

The fourth proportional to 331,939.25, 458,074.07 and 188,699.30 is: 260,403.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,939.25 : 458,074.07 = 188,699.30 : x
  2. Step 2: Convert to fraction form
    331,939.25/458,074.07 = 188,699.30/x
  3. Step 3: Cross multiply
    331,939.25x = 458,074.07 × 188,699.30
  4. Step 4: Simplify right side
    331,939.25x = 86,438,253,123.28
  5. Step 5: Solve for x
    x = 86,438,253,123.28/331,939.25
  6. Step 6: Final answer
    x = 260,403.84

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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.