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Finding the Fourth Proportional to 215,375.07, 297,217.61 and 119,879.72

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Solution

The fourth proportional to 215,375.07, 297,217.61 and 119,879.72 is: 165,434.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,375.07 : 297,217.61 = 119,879.72 : x
  2. Step 2: Convert to fraction form
    215,375.07/297,217.61 = 119,879.72/x
  3. Step 3: Cross multiply
    215,375.07x = 297,217.61 × 119,879.72
  4. Step 4: Simplify right side
    215,375.07x = 35,630,361,780.38
  5. Step 5: Solve for x
    x = 35,630,361,780.38/215,375.07
  6. Step 6: Final answer
    x = 165,434.01

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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.