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Finding the Fourth Proportional to 268,105.60, 401,812.80 and 162,812.80

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Solution

The fourth proportional to 268,105.60, 401,812.80 and 162,812.80 is: 244,009.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,105.60 : 401,812.80 = 162,812.80 : x
  2. Step 2: Convert to fraction form
    268,105.60/401,812.80 = 162,812.80/x
  3. Step 3: Cross multiply
    268,105.60x = 401,812.80 × 162,812.80
  4. Step 4: Simplify right side
    268,105.60x = 65,420,267,043.84
  5. Step 5: Solve for x
    x = 65,420,267,043.84/268,105.60
  6. Step 6: Final answer
    x = 244,009.33

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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.