Home / 238,719.48-329,433-131,296.80

Finding the Fourth Proportional to 238,719.48, 329,433 and 131,296.80

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Solution

The fourth proportional to 238,719.48, 329,433 and 131,296.80 is: 181,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,719.48 : 329,433 = 131,296.80 : x
  2. Step 2: Convert to fraction form
    238,719.48/329,433 = 131,296.80/x
  3. Step 3: Cross multiply
    238,719.48x = 329,433 × 131,296.80
  4. Step 4: Simplify right side
    238,719.48x = 43,253,498,714.40
  5. Step 5: Solve for x
    x = 43,253,498,714.40/238,719.48
  6. Step 6: Final answer
    x = 181,189.65

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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.