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Finding the Fourth Proportional to 238,661.88, 329,361.86 and 131,240.08

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Solution

The fourth proportional to 238,661.88, 329,361.86 and 131,240.08 is: 181,115.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,661.88 : 329,361.86 = 131,240.08 : x
  2. Step 2: Convert to fraction form
    238,661.88/329,361.86 = 131,240.08/x
  3. Step 3: Cross multiply
    238,661.88x = 329,361.86 × 131,240.08
  4. Step 4: Simplify right side
    238,661.88x = 43,225,477,595.15
  5. Step 5: Solve for x
    x = 43,225,477,595.15/238,661.88
  6. Step 6: Final answer
    x = 181,115.97

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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.