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Finding the Fourth Proportional to 308,601.06, 462,481.20 and 188,700

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Solution

The fourth proportional to 308,601.06, 462,481.20 and 188,700 is: 282,792.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,601.06 : 462,481.20 = 188,700 : x
  2. Step 2: Convert to fraction form
    308,601.06/462,481.20 = 188,700/x
  3. Step 3: Cross multiply
    308,601.06x = 462,481.20 × 188,700
  4. Step 4: Simplify right side
    308,601.06x = 87,270,202,440
  5. Step 5: Solve for x
    x = 87,270,202,440/308,601.06
  6. Step 6: Final answer
    x = 282,792.94

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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.