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Finding the Fourth Proportional to 316,249.70, 436,465.68 and 195,449.54

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Solution

The fourth proportional to 316,249.70, 436,465.68 and 195,449.54 is: 269,745.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,249.70 : 436,465.68 = 195,449.54 : x
  2. Step 2: Convert to fraction form
    316,249.70/436,465.68 = 195,449.54/x
  3. Step 3: Cross multiply
    316,249.70x = 436,465.68 × 195,449.54
  4. Step 4: Simplify right side
    316,249.70x = 85,307,016,381.79
  5. Step 5: Solve for x
    x = 85,307,016,381.79/316,249.70
  6. Step 6: Final answer
    x = 269,745.76

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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.