Home / 238,975.91-329,748.16-136,982.60

Finding the Fourth Proportional to 238,975.91, 329,748.16 and 136,982.60

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Solution

The fourth proportional to 238,975.91, 329,748.16 and 136,982.60 is: 189,013.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,975.91 : 329,748.16 = 136,982.60 : x
  2. Step 2: Convert to fraction form
    238,975.91/329,748.16 = 136,982.60/x
  3. Step 3: Cross multiply
    238,975.91x = 329,748.16 × 136,982.60
  4. Step 4: Simplify right side
    238,975.91x = 45,169,760,302.02
  5. Step 5: Solve for x
    x = 45,169,760,302.02/238,975.91
  6. Step 6: Final answer
    x = 189,013.86

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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.