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Finding the Fourth Proportional to 313,926.62, 470,879.34 and 136,433.64

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Solution

The fourth proportional to 313,926.62, 470,879.34 and 136,433.64 is: 204,645.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,926.62 : 470,879.34 = 136,433.64 : x
  2. Step 2: Convert to fraction form
    313,926.62/470,879.34 = 136,433.64/x
  3. Step 3: Cross multiply
    313,926.62x = 470,879.34 × 136,433.64
  4. Step 4: Simplify right side
    313,926.62x = 64,243,782,357.00
  5. Step 5: Solve for x
    x = 64,243,782,357.00/313,926.62
  6. Step 6: Final answer
    x = 204,645.86

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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.