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Finding the Fourth Proportional to 268,738.01, 403,093.68 and 100,245.20

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Solution

The fourth proportional to 268,738.01, 403,093.68 and 100,245.20 is: 150,362.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,738.01 : 403,093.68 = 100,245.20 : x
  2. Step 2: Convert to fraction form
    268,738.01/403,093.68 = 100,245.20/x
  3. Step 3: Cross multiply
    268,738.01x = 403,093.68 × 100,245.20
  4. Step 4: Simplify right side
    268,738.01x = 40,408,206,570.34
  5. Step 5: Solve for x
    x = 40,408,206,570.34/268,738.01
  6. Step 6: Final answer
    x = 150,362.83

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1.5x scale

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.