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Finding the Fourth Proportional to 238,889.86, 329,659.74 and 131,449.84

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Solution

The fourth proportional to 238,889.86, 329,659.74 and 131,449.84 is: 181,396.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,889.86 : 329,659.74 = 131,449.84 : x
  2. Step 2: Convert to fraction form
    238,889.86/329,659.74 = 131,449.84/x
  3. Step 3: Cross multiply
    238,889.86x = 329,659.74 × 131,449.84
  4. Step 4: Simplify right side
    238,889.86x = 43,333,719,253.29
  5. Step 5: Solve for x
    x = 43,333,719,253.29/238,889.86
  6. Step 6: Final answer
    x = 181,396.23

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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.