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Finding the Fourth Proportional to 238,487.56, 329,106.20 and 131,057.56

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Solution

The fourth proportional to 238,487.56, 329,106.20 and 131,057.56 is: 180,855.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,487.56 : 329,106.20 = 131,057.56 : x
  2. Step 2: Convert to fraction form
    238,487.56/329,106.20 = 131,057.56/x
  3. Step 3: Cross multiply
    238,487.56x = 329,106.20 × 131,057.56
  4. Step 4: Simplify right side
    238,487.56x = 43,131,855,552.87
  5. Step 5: Solve for x
    x = 43,131,855,552.87/238,487.56
  6. Step 6: Final answer
    x = 180,855.79

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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.