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Finding the Fourth Proportional to 276,518.96, 381,591.92 and 155,659.88

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Solution

The fourth proportional to 276,518.96, 381,591.92 and 155,659.88 is: 214,808.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,518.96 : 381,591.92 = 155,659.88 : x
  2. Step 2: Convert to fraction form
    276,518.96/381,591.92 = 155,659.88/x
  3. Step 3: Cross multiply
    276,518.96x = 381,591.92 × 155,659.88
  4. Step 4: Simplify right side
    276,518.96x = 59,398,552,476.17
  5. Step 5: Solve for x
    x = 59,398,552,476.17/276,518.96
  6. Step 6: Final answer
    x = 214,808.24

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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.