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Finding the Fourth Proportional to 276,186.99, 379,486.32 and 219,499.95

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Solution

The fourth proportional to 276,186.99, 379,486.32 and 219,499.95 is: 301,597.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,186.99 : 379,486.32 = 219,499.95 : x
  2. Step 2: Convert to fraction form
    276,186.99/379,486.32 = 219,499.95/x
  3. Step 3: Cross multiply
    276,186.99x = 379,486.32 × 219,499.95
  4. Step 4: Simplify right side
    276,186.99x = 83,297,228,265.68
  5. Step 5: Solve for x
    x = 83,297,228,265.68/276,186.99
  6. Step 6: Final answer
    x = 301,597.22

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.