Home / 318,213.28-477,414.64-131,236

Finding the Fourth Proportional to 318,213.28, 477,414.64 and 131,236

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Solution

The fourth proportional to 318,213.28, 477,414.64 and 131,236 is: 196,893.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,213.28 : 477,414.64 = 131,236 : x
  2. Step 2: Convert to fraction form
    318,213.28/477,414.64 = 131,236/x
  3. Step 3: Cross multiply
    318,213.28x = 477,414.64 × 131,236
  4. Step 4: Simplify right side
    318,213.28x = 62,653,987,695.04
  5. Step 5: Solve for x
    x = 62,653,987,695.04/318,213.28
  6. Step 6: Final answer
    x = 196,893.06

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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.