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Finding the Fourth Proportional to 251,013.80, 376,812.30 and 151,286.60

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Solution

The fourth proportional to 251,013.80, 376,812.30 and 151,286.60 is: 227,105.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,013.80 : 376,812.30 = 151,286.60 : x
  2. Step 2: Convert to fraction form
    251,013.80/376,812.30 = 151,286.60/x
  3. Step 3: Cross multiply
    251,013.80x = 376,812.30 × 151,286.60
  4. Step 4: Simplify right side
    251,013.80x = 57,006,651,705.18
  5. Step 5: Solve for x
    x = 57,006,651,705.18/251,013.80
  6. Step 6: Final answer
    x = 227,105.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.