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Finding the Fourth Proportional to 576,299.84, 863,858.56 and 221,218.24

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Solution

The fourth proportional to 576,299.84, 863,858.56 and 221,218.24 is: 331,600.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,299.84 : 863,858.56 = 221,218.24 : x
  2. Step 2: Convert to fraction form
    576,299.84/863,858.56 = 221,218.24/x
  3. Step 3: Cross multiply
    576,299.84x = 863,858.56 × 221,218.24
  4. Step 4: Simplify right side
    576,299.84x = 191,101,270,252.13
  5. Step 5: Solve for x
    x = 191,101,270,252.13/576,299.84
  6. Step 6: Final answer
    x = 331,600.42

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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.