Home / 204,478.11-306,765.81-64,236.78

Finding the Fourth Proportional to 204,478.11, 306,765.81 and 64,236.78

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Solution

The fourth proportional to 204,478.11, 306,765.81 and 64,236.78 is: 96,370.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,478.11 : 306,765.81 = 64,236.78 : x
  2. Step 2: Convert to fraction form
    204,478.11/306,765.81 = 64,236.78/x
  3. Step 3: Cross multiply
    204,478.11x = 306,765.81 × 64,236.78
  4. Step 4: Simplify right side
    204,478.11x = 19,705,647,848.49
  5. Step 5: Solve for x
    x = 19,705,647,848.49/204,478.11
  6. Step 6: Final answer
    x = 96,370.45

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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.