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Finding the Fourth Proportional to 378,486, 522,318.24 and 244,583.28

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Solution

The fourth proportional to 378,486, 522,318.24 and 244,583.28 is: 337,529.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,486 : 522,318.24 = 244,583.28 : x
  2. Step 2: Convert to fraction form
    378,486/522,318.24 = 244,583.28/x
  3. Step 3: Cross multiply
    378,486x = 522,318.24 × 244,583.28
  4. Step 4: Simplify right side
    378,486x = 127,750,308,343.03
  5. Step 5: Solve for x
    x = 127,750,308,343.03/378,486
  6. Step 6: Final answer
    x = 337,529.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.