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Finding the Fourth Proportional to 576,375.45, 864,604.64 and 221,389.48

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Solution

The fourth proportional to 576,375.45, 864,604.64 and 221,389.48 is: 332,100.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,375.45 : 864,604.64 = 221,389.48 : x
  2. Step 2: Convert to fraction form
    576,375.45/864,604.64 = 221,389.48/x
  3. Step 3: Cross multiply
    576,375.45x = 864,604.64 × 221,389.48
  4. Step 4: Simplify right side
    576,375.45x = 191,414,370,548.24
  5. Step 5: Solve for x
    x = 191,414,370,548.24/576,375.45
  6. Step 6: Final answer
    x = 332,100.15

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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.