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Finding the Fourth Proportional to 215,291.62, 297,088.86 and 119,795.86

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Solution

The fourth proportional to 215,291.62, 297,088.86 and 119,795.86 is: 165,310.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,291.62 : 297,088.86 = 119,795.86 : x
  2. Step 2: Convert to fraction form
    215,291.62/297,088.86 = 119,795.86/x
  3. Step 3: Cross multiply
    215,291.62x = 297,088.86 × 119,795.86
  4. Step 4: Simplify right side
    215,291.62x = 35,590,015,480.12
  5. Step 5: Solve for x
    x = 35,590,015,480.12/215,291.62
  6. Step 6: Final answer
    x = 165,310.73

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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.