Home / 400,948.97-553,309.53-219,667.32

Finding the Fourth Proportional to 400,948.97, 553,309.53 and 219,667.32

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Solution

The fourth proportional to 400,948.97, 553,309.53 and 219,667.32 is: 303,140.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,948.97 : 553,309.53 = 219,667.32 : x
  2. Step 2: Convert to fraction form
    400,948.97/553,309.53 = 219,667.32/x
  3. Step 3: Cross multiply
    400,948.97x = 553,309.53 × 219,667.32
  4. Step 4: Simplify right side
    400,948.97x = 121,544,021,585.56
  5. Step 5: Solve for x
    x = 121,544,021,585.56/400,948.97
  6. Step 6: Final answer
    x = 303,140.88

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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.