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Finding the Fourth Proportional to 276,714, 381,861.18 and 155,867.04

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Solution

The fourth proportional to 276,714, 381,861.18 and 155,867.04 is: 215,094.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,714 : 381,861.18 = 155,867.04 : x
  2. Step 2: Convert to fraction form
    276,714/381,861.18 = 155,867.04/x
  3. Step 3: Cross multiply
    276,714x = 381,861.18 × 155,867.04
  4. Step 4: Simplify right side
    276,714x = 59,519,571,817.51
  5. Step 5: Solve for x
    x = 59,519,571,817.51/276,714
  6. Step 6: Final answer
    x = 215,094.18

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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.