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Finding the Fourth Proportional to 308,126.70, 462,190.05 and 108,672.30

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Solution

The fourth proportional to 308,126.70, 462,190.05 and 108,672.30 is: 163,008.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,126.70 : 462,190.05 = 108,672.30 : x
  2. Step 2: Convert to fraction form
    308,126.70/462,190.05 = 108,672.30/x
  3. Step 3: Cross multiply
    308,126.70x = 462,190.05 × 108,672.30
  4. Step 4: Simplify right side
    308,126.70x = 50,227,255,770.62
  5. Step 5: Solve for x
    x = 50,227,255,770.62/308,126.70
  6. Step 6: Final answer
    x = 163,008.45

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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.