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Finding the Fourth Proportional to 239,258.78, 330,176.82 and 131,828.78

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Solution

The fourth proportional to 239,258.78, 330,176.82 and 131,828.78 is: 181,923.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,258.78 : 330,176.82 = 131,828.78 : x
  2. Step 2: Convert to fraction form
    239,258.78/330,176.82 = 131,828.78/x
  3. Step 3: Cross multiply
    239,258.78x = 330,176.82 × 131,828.78
  4. Step 4: Simplify right side
    239,258.78x = 43,526,805,714.00
  5. Step 5: Solve for x
    x = 43,526,805,714.00/239,258.78
  6. Step 6: Final answer
    x = 181,923.55

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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.