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Finding the Fourth Proportional to 308,421.57, 462,570.39 and 108,750.09

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Solution

The fourth proportional to 308,421.57, 462,570.39 and 108,750.09 is: 163,103.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,421.57 : 462,570.39 = 108,750.09 : x
  2. Step 2: Convert to fraction form
    308,421.57/462,570.39 = 108,750.09/x
  3. Step 3: Cross multiply
    308,421.57x = 462,570.39 × 108,750.09
  4. Step 4: Simplify right side
    308,421.57x = 50,304,571,543.84
  5. Step 5: Solve for x
    x = 50,304,571,543.84/308,421.57
  6. Step 6: Final answer
    x = 163,103.29

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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.