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Finding the Fourth Proportional to 238,708.97, 329,410.83 and 131,278.67

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Solution

The fourth proportional to 238,708.97, 329,410.83 and 131,278.67 is: 181,160.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,708.97 : 329,410.83 = 131,278.67 : x
  2. Step 2: Convert to fraction form
    238,708.97/329,410.83 = 131,278.67/x
  3. Step 3: Cross multiply
    238,708.97x = 329,410.83 × 131,278.67
  4. Step 4: Simplify right side
    238,708.97x = 43,244,615,646.00
  5. Step 5: Solve for x
    x = 43,244,615,646.00/238,708.97
  6. Step 6: Final answer
    x = 181,160.41

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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.