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Finding the Fourth Proportional to 238,698.22, 329,412 and 131,276.56

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Solution

The fourth proportional to 238,698.22, 329,412 and 131,276.56 is: 181,166.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,698.22 : 329,412 = 131,276.56 : x
  2. Step 2: Convert to fraction form
    238,698.22/329,412 = 131,276.56/x
  3. Step 3: Cross multiply
    238,698.22x = 329,412 × 131,276.56
  4. Step 4: Simplify right side
    238,698.22x = 43,244,074,182.72
  5. Step 5: Solve for x
    x = 43,244,074,182.72/238,698.22
  6. Step 6: Final answer
    x = 181,166.30

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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.