Home / 276,792.72-381,975.12-155,935.46

Finding the Fourth Proportional to 276,792.72, 381,975.12 and 155,935.46

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Solution

The fourth proportional to 276,792.72, 381,975.12 and 155,935.46 is: 215,191.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,792.72 : 381,975.12 = 155,935.46 : x
  2. Step 2: Convert to fraction form
    276,792.72/381,975.12 = 155,935.46/x
  3. Step 3: Cross multiply
    276,792.72x = 381,975.12 × 155,935.46
  4. Step 4: Simplify right side
    276,792.72x = 59,563,464,135.88
  5. Step 5: Solve for x
    x = 59,563,464,135.88/276,792.72
  6. Step 6: Final answer
    x = 215,191.59

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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.