Home / 276,791.72-381,973.74-155,934.46

Finding the Fourth Proportional to 276,791.72, 381,973.74 and 155,934.46

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Solution

The fourth proportional to 276,791.72, 381,973.74 and 155,934.46 is: 215,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,791.72 : 381,973.74 = 155,934.46 : x
  2. Step 2: Convert to fraction form
    276,791.72/381,973.74 = 155,934.46/x
  3. Step 3: Cross multiply
    276,791.72x = 381,973.74 × 155,934.46
  4. Step 4: Simplify right side
    276,791.72x = 59,562,866,971.21
  5. Step 5: Solve for x
    x = 59,562,866,971.21/276,791.72
  6. Step 6: Final answer
    x = 215,190.21

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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.