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Finding the Fourth Proportional to 276,162.92, 381,101.20 and 155,304.17

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Solution

The fourth proportional to 276,162.92, 381,101.20 and 155,304.17 is: 214,317.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,162.92 : 381,101.20 = 155,304.17 : x
  2. Step 2: Convert to fraction form
    276,162.92/381,101.20 = 155,304.17/x
  3. Step 3: Cross multiply
    276,162.92x = 381,101.20 × 155,304.17
  4. Step 4: Simplify right side
    276,162.92x = 59,186,605,552.00
  5. Step 5: Solve for x
    x = 59,186,605,552.00/276,162.92
  6. Step 6: Final answer
    x = 214,317.71

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1.5x scale

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.