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Finding the Fourth Proportional to 238,612, 329,276.16 and 131,181.26

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Solution

The fourth proportional to 238,612, 329,276.16 and 131,181.26 is: 181,025.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,612 : 329,276.16 = 131,181.26 : x
  2. Step 2: Convert to fraction form
    238,612/329,276.16 = 131,181.26/x
  3. Step 3: Cross multiply
    238,612x = 329,276.16 × 131,181.26
  4. Step 4: Simplify right side
    238,612x = 43,194,861,556.76
  5. Step 5: Solve for x
    x = 43,194,861,556.76/238,612
  6. Step 6: Final answer
    x = 181,025.52

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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.