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Finding the Fourth Proportional to 308,771.60, 463,200.60 and 131,277.20

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Solution

The fourth proportional to 308,771.60, 463,200.60 and 131,277.20 is: 196,934.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,771.60 : 463,200.60 = 131,277.20 : x
  2. Step 2: Convert to fraction form
    308,771.60/463,200.60 = 131,277.20/x
  3. Step 3: Cross multiply
    308,771.60x = 463,200.60 × 131,277.20
  4. Step 4: Simplify right side
    308,771.60x = 60,807,677,806.32
  5. Step 5: Solve for x
    x = 60,807,677,806.32/308,771.60
  6. Step 6: Final answer
    x = 196,934.17

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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.