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Finding the Fourth Proportional to 308,228.49, 462,380.10 and 108,508.01

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Solution

The fourth proportional to 308,228.49, 462,380.10 and 108,508.01 is: 162,775.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,228.49 : 462,380.10 = 108,508.01 : x
  2. Step 2: Convert to fraction form
    308,228.49/462,380.10 = 108,508.01/x
  3. Step 3: Cross multiply
    308,228.49x = 462,380.10 × 108,508.01
  4. Step 4: Simplify right side
    308,228.49x = 50,171,941,795.80
  5. Step 5: Solve for x
    x = 50,171,941,795.80/308,228.49
  6. Step 6: Final answer
    x = 162,775.16

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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.