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Finding the Fourth Proportional to 251,915.60, 377,873.40 and 219,110.60

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Solution

The fourth proportional to 251,915.60, 377,873.40 and 219,110.60 is: 328,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,915.60 : 377,873.40 = 219,110.60 : x
  2. Step 2: Convert to fraction form
    251,915.60/377,873.40 = 219,110.60/x
  3. Step 3: Cross multiply
    251,915.60x = 377,873.40 × 219,110.60
  4. Step 4: Simplify right side
    251,915.60x = 82,796,067,398.04
  5. Step 5: Solve for x
    x = 82,796,067,398.04/251,915.60
  6. Step 6: Final answer
    x = 328,665.90

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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.