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Finding the Fourth Proportional to 239,393.59, 330,348.31 and 131,958.07

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Solution

The fourth proportional to 239,393.59, 330,348.31 and 131,958.07 is: 182,093.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,393.59 : 330,348.31 = 131,958.07 : x
  2. Step 2: Convert to fraction form
    239,393.59/330,348.31 = 131,958.07/x
  3. Step 3: Cross multiply
    239,393.59x = 330,348.31 × 131,958.07
  4. Step 4: Simplify right side
    239,393.59x = 43,592,125,415.36
  5. Step 5: Solve for x
    x = 43,592,125,415.36/239,393.59
  6. Step 6: Final answer
    x = 182,093.95

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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.