Home / 400,949.55-553,310.34-219,667.90

Finding the Fourth Proportional to 400,949.55, 553,310.34 and 219,667.90

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Solution

The fourth proportional to 400,949.55, 553,310.34 and 219,667.90 is: 303,141.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,949.55 : 553,310.34 = 219,667.90 : x
  2. Step 2: Convert to fraction form
    400,949.55/553,310.34 = 219,667.90/x
  3. Step 3: Cross multiply
    400,949.55x = 553,310.34 × 219,667.90
  4. Step 4: Simplify right side
    400,949.55x = 121,544,520,436.09
  5. Step 5: Solve for x
    x = 121,544,520,436.09/400,949.55
  6. Step 6: Final answer
    x = 303,141.68

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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.