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Finding the Fourth Proportional to 308,244, 462,366 and 86,628

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Solution

The fourth proportional to 308,244, 462,366 and 86,628 is: 129,942

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,244 : 462,366 = 86,628 : x
  2. Step 2: Convert to fraction form
    308,244/462,366 = 86,628/x
  3. Step 3: Cross multiply
    308,244x = 462,366 × 86,628
  4. Step 4: Simplify right side
    308,244x = 40,053,841,848
  5. Step 5: Solve for x
    x = 40,053,841,848/308,244
  6. Step 6: Final answer
    x = 129,942

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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.