Home / 238,563.05-329,213.31-131,130.78

Finding the Fourth Proportional to 238,563.05, 329,213.31 and 131,130.78

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Solution

The fourth proportional to 238,563.05, 329,213.31 and 131,130.78 is: 180,958.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,563.05 : 329,213.31 = 131,130.78 : x
  2. Step 2: Convert to fraction form
    238,563.05/329,213.31 = 131,130.78/x
  3. Step 3: Cross multiply
    238,563.05x = 329,213.31 × 131,130.78
  4. Step 4: Simplify right side
    238,563.05x = 43,169,998,126.68
  5. Step 5: Solve for x
    x = 43,169,998,126.68/238,563.05
  6. Step 6: Final answer
    x = 180,958.44

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1.5x scale

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.