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Finding the Fourth Proportional to 376,906.94, 520,142.55 and 213,551.54

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Solution

The fourth proportional to 376,906.94, 520,142.55 and 213,551.54 is: 294,707.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,906.94 : 520,142.55 = 213,551.54 : x
  2. Step 2: Convert to fraction form
    376,906.94/520,142.55 = 213,551.54/x
  3. Step 3: Cross multiply
    376,906.94x = 520,142.55 × 213,551.54
  4. Step 4: Simplify right side
    376,906.94x = 111,077,242,572.03
  5. Step 5: Solve for x
    x = 111,077,242,572.03/376,906.94
  6. Step 6: Final answer
    x = 294,707.34

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