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Finding the Fourth Proportional to 251,016, 376,570.40 and 82,545.60

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Solution

The fourth proportional to 251,016, 376,570.40 and 82,545.60 is: 123,833.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,016 : 376,570.40 = 82,545.60 : x
  2. Step 2: Convert to fraction form
    251,016/376,570.40 = 82,545.60/x
  3. Step 3: Cross multiply
    251,016x = 376,570.40 × 82,545.60
  4. Step 4: Simplify right side
    251,016x = 31,084,229,610.24
  5. Step 5: Solve for x
    x = 31,084,229,610.24/251,016
  6. Step 6: Final answer
    x = 123,833.66

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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.