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Finding the Fourth Proportional to 377,902.28, 521,494.64 and 205,816.48

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Solution

The fourth proportional to 377,902.28, 521,494.64 and 205,816.48 is: 284,021.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,902.28 : 521,494.64 = 205,816.48 : x
  2. Step 2: Convert to fraction form
    377,902.28/521,494.64 = 205,816.48/x
  3. Step 3: Cross multiply
    377,902.28x = 521,494.64 × 205,816.48
  4. Step 4: Simplify right side
    377,902.28x = 107,332,191,143.67
  5. Step 5: Solve for x
    x = 107,332,191,143.67/377,902.28
  6. Step 6: Final answer
    x = 284,021.02

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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.