Home / 269,921.52-405,127.92-143,667.72

Finding the Fourth Proportional to 269,921.52, 405,127.92 and 143,667.72

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Solution

The fourth proportional to 269,921.52, 405,127.92 and 143,667.72 is: 215,632.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,921.52 : 405,127.92 = 143,667.72 : x
  2. Step 2: Convert to fraction form
    269,921.52/405,127.92 = 143,667.72/x
  3. Step 3: Cross multiply
    269,921.52x = 405,127.92 × 143,667.72
  4. Step 4: Simplify right side
    269,921.52x = 58,203,804,574.74
  5. Step 5: Solve for x
    x = 58,203,804,574.74/269,921.52
  6. Step 6: Final answer
    x = 215,632.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.