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Finding the Fourth Proportional to 308,376.38, 462,632.61 and 131,034.98

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Solution

The fourth proportional to 308,376.38, 462,632.61 and 131,034.98 is: 196,581.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,376.38 : 462,632.61 = 131,034.98 : x
  2. Step 2: Convert to fraction form
    308,376.38/462,632.61 = 131,034.98/x
  3. Step 3: Cross multiply
    308,376.38x = 462,632.61 × 131,034.98
  4. Step 4: Simplify right side
    308,376.38x = 60,621,052,485.53
  5. Step 5: Solve for x
    x = 60,621,052,485.53/308,376.38
  6. Step 6: Final answer
    x = 196,581.38

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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.