Home / 331,930.43-458,061.89-188,690.46

Finding the Fourth Proportional to 331,930.43, 458,061.89 and 188,690.46

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Solution

The fourth proportional to 331,930.43, 458,061.89 and 188,690.46 is: 260,391.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,930.43 : 458,061.89 = 188,690.46 : x
  2. Step 2: Convert to fraction form
    331,930.43/458,061.89 = 188,690.46/x
  3. Step 3: Cross multiply
    331,930.43x = 458,061.89 × 188,690.46
  4. Step 4: Simplify right side
    331,930.43x = 86,431,907,789.12
  5. Step 5: Solve for x
    x = 86,431,907,789.12/331,930.43
  6. Step 6: Final answer
    x = 260,391.64

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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.