Home / 287,529.11-396,791.79-166,742.11

Finding the Fourth Proportional to 287,529.11, 396,791.79 and 166,742.11

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Solution

The fourth proportional to 287,529.11, 396,791.79 and 166,742.11 is: 230,105.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,529.11 : 396,791.79 = 166,742.11 : x
  2. Step 2: Convert to fraction form
    287,529.11/396,791.79 = 166,742.11/x
  3. Step 3: Cross multiply
    287,529.11x = 396,791.79 × 166,742.11
  4. Step 4: Simplify right side
    287,529.11x = 66,161,900,920.56
  5. Step 5: Solve for x
    x = 66,161,900,920.56/287,529.11
  6. Step 6: Final answer
    x = 230,105.05

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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.