Home / 238,580.22-329,244.81-131,154.78

Finding the Fourth Proportional to 238,580.22, 329,244.81 and 131,154.78

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Solution

The fourth proportional to 238,580.22, 329,244.81 and 131,154.78 is: 180,995.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,580.22 : 329,244.81 = 131,154.78 : x
  2. Step 2: Convert to fraction form
    238,580.22/329,244.81 = 131,154.78/x
  3. Step 3: Cross multiply
    238,580.22x = 329,244.81 × 131,154.78
  4. Step 4: Simplify right side
    238,580.22x = 43,182,030,621.69
  5. Step 5: Solve for x
    x = 43,182,030,621.69/238,580.22
  6. Step 6: Final answer
    x = 180,995.85

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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.