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Finding the Fourth Proportional to 215,998.96, 323,996.52 and 68,254.96

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Solution

The fourth proportional to 215,998.96, 323,996.52 and 68,254.96 is: 102,381.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,998.96 : 323,996.52 = 68,254.96 : x
  2. Step 2: Convert to fraction form
    215,998.96/323,996.52 = 68,254.96/x
  3. Step 3: Cross multiply
    215,998.96x = 323,996.52 × 68,254.96
  4. Step 4: Simplify right side
    215,998.96x = 22,114,369,512.74
  5. Step 5: Solve for x
    x = 22,114,369,512.74/215,998.96
  6. Step 6: Final answer
    x = 102,381.83

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1.5x scale

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.