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Finding the Fourth Proportional to 251,216.60, 376,782.78 and 82,738.76

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Solution

The fourth proportional to 251,216.60, 376,782.78 and 82,738.76 is: 124,094.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,216.60 : 376,782.78 = 82,738.76 : x
  2. Step 2: Convert to fraction form
    251,216.60/376,782.78 = 82,738.76/x
  3. Step 3: Cross multiply
    251,216.60x = 376,782.78 × 82,738.76
  4. Step 4: Simplify right side
    251,216.60x = 31,174,540,006.55
  5. Step 5: Solve for x
    x = 31,174,540,006.55/251,216.60
  6. Step 6: Final answer
    x = 124,094.27

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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.