Home / 238,901.12-329,546.40-149,321.60

Finding the Fourth Proportional to 238,901.12, 329,546.40 and 149,321.60

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Solution

The fourth proportional to 238,901.12, 329,546.40 and 149,321.60 is: 205,978.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,901.12 : 329,546.40 = 149,321.60 : x
  2. Step 2: Convert to fraction form
    238,901.12/329,546.40 = 149,321.60/x
  3. Step 3: Cross multiply
    238,901.12x = 329,546.40 × 149,321.60
  4. Step 4: Simplify right side
    238,901.12x = 49,208,395,722.24
  5. Step 5: Solve for x
    x = 49,208,395,722.24/238,901.12
  6. Step 6: Final answer
    x = 205,978.09

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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.