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Finding the Fourth Proportional to 238,889.99, 329,659.90 and 131,449.97

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Solution

The fourth proportional to 238,889.99, 329,659.90 and 131,449.97 is: 181,396.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,889.99 : 329,659.90 = 131,449.97 : x
  2. Step 2: Convert to fraction form
    238,889.99/329,659.90 = 131,449.97/x
  3. Step 3: Cross multiply
    238,889.99x = 329,659.90 × 131,449.97
  4. Step 4: Simplify right side
    238,889.99x = 43,333,783,965.20
  5. Step 5: Solve for x
    x = 43,333,783,965.20/238,889.99
  6. Step 6: Final answer
    x = 181,396.40

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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.