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Finding the Fourth Proportional to 376,884.54, 520,120.61 and 213,572.70

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Solution

The fourth proportional to 376,884.54, 520,120.61 and 213,572.70 is: 294,741.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,884.54 : 520,120.61 = 213,572.70 : x
  2. Step 2: Convert to fraction form
    376,884.54/520,120.61 = 213,572.70/x
  3. Step 3: Cross multiply
    376,884.54x = 520,120.61 × 213,572.70
  4. Step 4: Simplify right side
    376,884.54x = 111,083,562,736.38
  5. Step 5: Solve for x
    x = 111,083,562,736.38/376,884.54
  6. Step 6: Final answer
    x = 294,741.63

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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.