Home / 238,668.79-329,351.65-131,243.35

Finding the Fourth Proportional to 238,668.79, 329,351.65 and 131,243.35

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Solution

The fourth proportional to 238,668.79, 329,351.65 and 131,243.35 is: 181,109.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,668.79 : 329,351.65 = 131,243.35 : x
  2. Step 2: Convert to fraction form
    238,668.79/329,351.65 = 131,243.35/x
  3. Step 3: Cross multiply
    238,668.79x = 329,351.65 × 131,243.35
  4. Step 4: Simplify right side
    238,668.79x = 43,225,213,874.03
  5. Step 5: Solve for x
    x = 43,225,213,874.03/238,668.79
  6. Step 6: Final answer
    x = 181,109.62

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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.