Home / 238,709.25-329,412.18-131,279.28

Finding the Fourth Proportional to 238,709.25, 329,412.18 and 131,279.28

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Solution

The fourth proportional to 238,709.25, 329,412.18 and 131,279.28 is: 181,161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,709.25 : 329,412.18 = 131,279.28 : x
  2. Step 2: Convert to fraction form
    238,709.25/329,412.18 = 131,279.28/x
  3. Step 3: Cross multiply
    238,709.25x = 329,412.18 × 131,279.28
  4. Step 4: Simplify right side
    238,709.25x = 43,244,992,166.57
  5. Step 5: Solve for x
    x = 43,244,992,166.57/238,709.25
  6. Step 6: Final answer
    x = 181,161.78

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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.