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Finding the Fourth Proportional to 215,129.80, 322,714.94 and 63,326.98

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Solution

The fourth proportional to 215,129.80, 322,714.94 and 63,326.98 is: 94,996.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,129.80 : 322,714.94 = 63,326.98 : x
  2. Step 2: Convert to fraction form
    215,129.80/322,714.94 = 63,326.98/x
  3. Step 3: Cross multiply
    215,129.80x = 322,714.94 × 63,326.98
  4. Step 4: Simplify right side
    215,129.80x = 20,436,562,234.45
  5. Step 5: Solve for x
    x = 20,436,562,234.45/215,129.80
  6. Step 6: Final answer
    x = 94,996.43

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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.