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Finding the Fourth Proportional to 311,119.96, 429,233.26 and 203,751.22

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Solution

The fourth proportional to 311,119.96, 429,233.26 and 203,751.22 is: 281,103.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,119.96 : 429,233.26 = 203,751.22 : x
  2. Step 2: Convert to fraction form
    311,119.96/429,233.26 = 203,751.22/x
  3. Step 3: Cross multiply
    311,119.96x = 429,233.26 × 203,751.22
  4. Step 4: Simplify right side
    311,119.96x = 87,456,800,389.58
  5. Step 5: Solve for x
    x = 87,456,800,389.58/311,119.96
  6. Step 6: Final answer
    x = 281,103.15

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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.