Home / 238,548.32-329,190-131,118.56

Finding the Fourth Proportional to 238,548.32, 329,190 and 131,118.56

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Solution

The fourth proportional to 238,548.32, 329,190 and 131,118.56 is: 180,939.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,548.32 : 329,190 = 131,118.56 : x
  2. Step 2: Convert to fraction form
    238,548.32/329,190 = 131,118.56/x
  3. Step 3: Cross multiply
    238,548.32x = 329,190 × 131,118.56
  4. Step 4: Simplify right side
    238,548.32x = 43,162,918,766.40
  5. Step 5: Solve for x
    x = 43,162,918,766.40/238,548.32
  6. Step 6: Final answer
    x = 180,939.94

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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.