Home / 238,815.03-329,561.13-131,378.65

Finding the Fourth Proportional to 238,815.03, 329,561.13 and 131,378.65

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Solution

The fourth proportional to 238,815.03, 329,561.13 and 131,378.65 is: 181,300.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,815.03 : 329,561.13 = 131,378.65 : x
  2. Step 2: Convert to fraction form
    238,815.03/329,561.13 = 131,378.65/x
  3. Step 3: Cross multiply
    238,815.03x = 329,561.13 × 131,378.65
  4. Step 4: Simplify right side
    238,815.03x = 43,297,296,351.87
  5. Step 5: Solve for x
    x = 43,297,296,351.87/238,815.03
  6. Step 6: Final answer
    x = 181,300.55

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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.