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Finding the Fourth Proportional to 365,383.44, 503,770.32 and 279,447.84

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Solution

The fourth proportional to 365,383.44, 503,770.32 and 279,447.84 is: 385,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,383.44 : 503,770.32 = 279,447.84 : x
  2. Step 2: Convert to fraction form
    365,383.44/503,770.32 = 279,447.84/x
  3. Step 3: Cross multiply
    365,383.44x = 503,770.32 × 279,447.84
  4. Step 4: Simplify right side
    365,383.44x = 140,777,527,780.11
  5. Step 5: Solve for x
    x = 140,777,527,780.11/365,383.44
  6. Step 6: Final answer
    x = 385,287.10

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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.