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Finding the Fourth Proportional to 576,229.80, 864,280 and 220,994.60

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Solution

The fourth proportional to 576,229.80, 864,280 and 220,994.60 is: 331,467.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,229.80 : 864,280 = 220,994.60 : x
  2. Step 2: Convert to fraction form
    576,229.80/864,280 = 220,994.60/x
  3. Step 3: Cross multiply
    576,229.80x = 864,280 × 220,994.60
  4. Step 4: Simplify right side
    576,229.80x = 191,001,212,888
  5. Step 5: Solve for x
    x = 191,001,212,888/576,229.80
  6. Step 6: Final answer
    x = 331,467.09

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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.