Home / 238,949.12-329,749.90-131,518.40

Finding the Fourth Proportional to 238,949.12, 329,749.90 and 131,518.40

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Solution

The fourth proportional to 238,949.12, 329,749.90 and 131,518.40 is: 181,495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,949.12 : 329,749.90 = 131,518.40 : x
  2. Step 2: Convert to fraction form
    238,949.12/329,749.90 = 131,518.40/x
  3. Step 3: Cross multiply
    238,949.12x = 329,749.90 × 131,518.40
  4. Step 4: Simplify right side
    238,949.12x = 43,368,177,270.61
  5. Step 5: Solve for x
    x = 43,368,177,270.61/238,949.12
  6. Step 6: Final answer
    x = 181,495.44

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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.