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Finding the Fourth Proportional to 268,749.93, 403,111.17 and 100,256.97

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Solution

The fourth proportional to 268,749.93, 403,111.17 and 100,256.97 is: 150,380.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,749.93 : 403,111.17 = 100,256.97 : x
  2. Step 2: Convert to fraction form
    268,749.93/403,111.17 = 100,256.97/x
  3. Step 3: Cross multiply
    268,749.93x = 403,111.17 × 100,256.97
  4. Step 4: Simplify right side
    268,749.93x = 40,414,704,477.35
  5. Step 5: Solve for x
    x = 40,414,704,477.35/268,749.93
  6. Step 6: Final answer
    x = 150,380.33

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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.