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Finding the Fourth Proportional to 215,801.92, 297,799.81 and 119,009.86

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Solution

The fourth proportional to 215,801.92, 297,799.81 and 119,009.86 is: 164,229.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,801.92 : 297,799.81 = 119,009.86 : x
  2. Step 2: Convert to fraction form
    215,801.92/297,799.81 = 119,009.86/x
  3. Step 3: Cross multiply
    215,801.92x = 297,799.81 × 119,009.86
  4. Step 4: Simplify right side
    215,801.92x = 35,441,112,654.10
  5. Step 5: Solve for x
    x = 35,441,112,654.10/215,801.92
  6. Step 6: Final answer
    x = 164,229.83

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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.