Home / 238,985.78-329,800.28-131,555.25

Finding the Fourth Proportional to 238,985.78, 329,800.28 and 131,555.25

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Solution

The fourth proportional to 238,985.78, 329,800.28 and 131,555.25 is: 181,546.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,985.78 : 329,800.28 = 131,555.25 : x
  2. Step 2: Convert to fraction form
    238,985.78/329,800.28 = 131,555.25/x
  3. Step 3: Cross multiply
    238,985.78x = 329,800.28 × 131,555.25
  4. Step 4: Simplify right side
    238,985.78x = 43,386,957,627.69
  5. Step 5: Solve for x
    x = 43,386,957,627.69/238,985.78
  6. Step 6: Final answer
    x = 181,546.19

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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.