Home / 204,749.73-306,914.13-78,360.30

Finding the Fourth Proportional to 204,749.73, 306,914.13 and 78,360.30

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Solution

The fourth proportional to 204,749.73, 306,914.13 and 78,360.30 is: 117,459.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,749.73 : 306,914.13 = 78,360.30 : x
  2. Step 2: Convert to fraction form
    204,749.73/306,914.13 = 78,360.30/x
  3. Step 3: Cross multiply
    204,749.73x = 306,914.13 × 78,360.30
  4. Step 4: Simplify right side
    204,749.73x = 24,049,883,301.04
  5. Step 5: Solve for x
    x = 24,049,883,301.04/204,749.73
  6. Step 6: Final answer
    x = 117,459.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.