Home / 331,257.41-457,148.96-188,030.78

Finding the Fourth Proportional to 331,257.41, 457,148.96 and 188,030.78

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Solution

The fourth proportional to 331,257.41, 457,148.96 and 188,030.78 is: 259,490.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,257.41 : 457,148.96 = 188,030.78 : x
  2. Step 2: Convert to fraction form
    331,257.41/457,148.96 = 188,030.78/x
  3. Step 3: Cross multiply
    331,257.41x = 457,148.96 × 188,030.78
  4. Step 4: Simplify right side
    331,257.41x = 85,958,072,299.09
  5. Step 5: Solve for x
    x = 85,958,072,299.09/331,257.41
  6. Step 6: Final answer
    x = 259,490.27

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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.