Home / 204,936.40-307,378.68-64,709.20

Finding the Fourth Proportional to 204,936.40, 307,378.68 and 64,709.20

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Solution

The fourth proportional to 204,936.40, 307,378.68 and 64,709.20 is: 97,055.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,936.40 : 307,378.68 = 64,709.20 : x
  2. Step 2: Convert to fraction form
    204,936.40/307,378.68 = 64,709.20/x
  3. Step 3: Cross multiply
    204,936.40x = 307,378.68 × 64,709.20
  4. Step 4: Simplify right side
    204,936.40x = 19,890,228,479.86
  5. Step 5: Solve for x
    x = 19,890,228,479.86/204,936.40
  6. Step 6: Final answer
    x = 97,055.62

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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.