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Finding the Fourth Proportional to 308,795.60, 463,236.60 and 131,301.20

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Solution

The fourth proportional to 308,795.60, 463,236.60 and 131,301.20 is: 196,970.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,795.60 : 463,236.60 = 131,301.20 : x
  2. Step 2: Convert to fraction form
    308,795.60/463,236.60 = 131,301.20/x
  3. Step 3: Cross multiply
    308,795.60x = 463,236.60 × 131,301.20
  4. Step 4: Simplify right side
    308,795.60x = 60,823,521,463.92
  5. Step 5: Solve for x
    x = 60,823,521,463.92/308,795.60
  6. Step 6: Final answer
    x = 196,970.17

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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.