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Finding the Fourth Proportional to 215,388.48, 297,230.90 and 119,893.16

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Solution

The fourth proportional to 215,388.48, 297,230.90 and 119,893.16 is: 165,449.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,388.48 : 297,230.90 = 119,893.16 : x
  2. Step 2: Convert to fraction form
    215,388.48/297,230.90 = 119,893.16/x
  3. Step 3: Cross multiply
    215,388.48x = 297,230.90 × 119,893.16
  4. Step 4: Simplify right side
    215,388.48x = 35,635,951,850.64
  5. Step 5: Solve for x
    x = 35,635,951,850.64/215,388.48
  6. Step 6: Final answer
    x = 165,449.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.