Home / 311,124.06-429,172.30-196,361.92

Finding the Fourth Proportional to 311,124.06, 429,172.30 and 196,361.92

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Solution

The fourth proportional to 311,124.06, 429,172.30 and 196,361.92 is: 270,866.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,124.06 : 429,172.30 = 196,361.92 : x
  2. Step 2: Convert to fraction form
    311,124.06/429,172.30 = 196,361.92/x
  3. Step 3: Cross multiply
    311,124.06x = 429,172.30 × 196,361.92
  4. Step 4: Simplify right side
    311,124.06x = 84,273,096,838.82
  5. Step 5: Solve for x
    x = 84,273,096,838.82/311,124.06
  6. Step 6: Final answer
    x = 270,866.54

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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.