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Finding the Fourth Proportional to 536,553.80, 804,539.10 and 221,042.60

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Solution

The fourth proportional to 536,553.80, 804,539.10 and 221,042.60 is: 331,443.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,553.80 : 804,539.10 = 221,042.60 : x
  2. Step 2: Convert to fraction form
    536,553.80/804,539.10 = 221,042.60/x
  3. Step 3: Cross multiply
    536,553.80x = 804,539.10 × 221,042.60
  4. Step 4: Simplify right side
    536,553.80x = 177,837,414,465.66
  5. Step 5: Solve for x
    x = 177,837,414,465.66/536,553.80
  6. Step 6: Final answer
    x = 331,443.77

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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.