Home / 238,709.37-329,412.35-131,279.40

Finding the Fourth Proportional to 238,709.37, 329,412.35 and 131,279.40

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Solution

The fourth proportional to 238,709.37, 329,412.35 and 131,279.40 is: 181,161.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,709.37 : 329,412.35 = 131,279.40 : x
  2. Step 2: Convert to fraction form
    238,709.37/329,412.35 = 131,279.40/x
  3. Step 3: Cross multiply
    238,709.37x = 329,412.35 × 131,279.40
  4. Step 4: Simplify right side
    238,709.37x = 43,245,055,660.59
  5. Step 5: Solve for x
    x = 43,245,055,660.59/238,709.37
  6. Step 6: Final answer
    x = 181,161.95

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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.