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Finding the Fourth Proportional to 308,272.83, 462,440.03 and 83,636.97

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Solution

The fourth proportional to 308,272.83, 462,440.03 and 83,636.97 is: 125,463.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,272.83 : 462,440.03 = 83,636.97 : x
  2. Step 2: Convert to fraction form
    308,272.83/462,440.03 = 83,636.97/x
  3. Step 3: Cross multiply
    308,272.83x = 462,440.03 × 83,636.97
  4. Step 4: Simplify right side
    308,272.83x = 38,677,082,497.72
  5. Step 5: Solve for x
    x = 38,677,082,497.72/308,272.83
  6. Step 6: Final answer
    x = 125,463.81

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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.