Home / 320,246.48-480,394.20-109,882.64

Finding the Fourth Proportional to 320,246.48, 480,394.20 and 109,882.64

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Solution

The fourth proportional to 320,246.48, 480,394.20 and 109,882.64 is: 164,832.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,246.48 : 480,394.20 = 109,882.64 : x
  2. Step 2: Convert to fraction form
    320,246.48/480,394.20 = 109,882.64/x
  3. Step 3: Cross multiply
    320,246.48x = 480,394.20 × 109,882.64
  4. Step 4: Simplify right side
    320,246.48x = 52,786,982,936.69
  5. Step 5: Solve for x
    x = 52,786,982,936.69/320,246.48
  6. Step 6: Final answer
    x = 164,832.36

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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.