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Finding the Fourth Proportional to 263,310.65, 363,412.16 and 161,392.80

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Solution

The fourth proportional to 263,310.65, 363,412.16 and 161,392.80 is: 222,748.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,310.65 : 363,412.16 = 161,392.80 : x
  2. Step 2: Convert to fraction form
    263,310.65/363,412.16 = 161,392.80/x
  3. Step 3: Cross multiply
    263,310.65x = 363,412.16 × 161,392.80
  4. Step 4: Simplify right side
    263,310.65x = 58,652,105,249.48
  5. Step 5: Solve for x
    x = 58,652,105,249.48/263,310.65
  6. Step 6: Final answer
    x = 222,748.71

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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.