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Finding the Fourth Proportional to 308,503.94, 462,804.53 and 131,011.88

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Solution

The fourth proportional to 308,503.94, 462,804.53 and 131,011.88 is: 196,538.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,503.94 : 462,804.53 = 131,011.88 : x
  2. Step 2: Convert to fraction form
    308,503.94/462,804.53 = 131,011.88/x
  3. Step 3: Cross multiply
    308,503.94x = 462,804.53 × 131,011.88
  4. Step 4: Simplify right side
    308,503.94x = 60,632,888,578.73
  5. Step 5: Solve for x
    x = 60,632,888,578.73/308,503.94
  6. Step 6: Final answer
    x = 196,538.46

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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.