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Finding the Fourth Proportional to 308,320.66, 462,594.39 and 220,267.18

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Solution

The fourth proportional to 308,320.66, 462,594.39 and 220,267.18 is: 330,481.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,320.66 : 462,594.39 = 220,267.18 : x
  2. Step 2: Convert to fraction form
    308,320.66/462,594.39 = 220,267.18/x
  3. Step 3: Cross multiply
    308,320.66x = 462,594.39 × 220,267.18
  4. Step 4: Simplify right side
    308,320.66x = 101,894,361,769.12
  5. Step 5: Solve for x
    x = 101,894,361,769.12/308,320.66
  6. Step 6: Final answer
    x = 330,481.78

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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.