Home / 322,949.60-484,712.40-189,663.20

Finding the Fourth Proportional to 322,949.60, 484,712.40 and 189,663.20

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Solution

The fourth proportional to 322,949.60, 484,712.40 and 189,663.20 is: 284,663.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,949.60 : 484,712.40 = 189,663.20 : x
  2. Step 2: Convert to fraction form
    322,949.60/484,712.40 = 189,663.20/x
  3. Step 3: Cross multiply
    322,949.60x = 484,712.40 × 189,663.20
  4. Step 4: Simplify right side
    322,949.60x = 91,932,104,863.68
  5. Step 5: Solve for x
    x = 91,932,104,863.68/322,949.60
  6. Step 6: Final answer
    x = 284,663.94

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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.