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Finding the Fourth Proportional to 308,772.92, 462,917.40 and 121,924.28

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Solution

The fourth proportional to 308,772.92, 462,917.40 and 121,924.28 is: 182,790.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,772.92 : 462,917.40 = 121,924.28 : x
  2. Step 2: Convert to fraction form
    308,772.92/462,917.40 = 121,924.28/x
  3. Step 3: Cross multiply
    308,772.92x = 462,917.40 × 121,924.28
  4. Step 4: Simplify right side
    308,772.92x = 56,440,870,694.47
  5. Step 5: Solve for x
    x = 56,440,870,694.47/308,772.92
  6. Step 6: Final answer
    x = 182,790.87

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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.