Home / 311,930.40-467,895.52-122,480.04

Finding the Fourth Proportional to 311,930.40, 467,895.52 and 122,480.04

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Solution

The fourth proportional to 311,930.40, 467,895.52 and 122,480.04 is: 183,720.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,930.40 : 467,895.52 = 122,480.04 : x
  2. Step 2: Convert to fraction form
    311,930.40/467,895.52 = 122,480.04/x
  3. Step 3: Cross multiply
    311,930.40x = 467,895.52 × 122,480.04
  4. Step 4: Simplify right side
    311,930.40x = 57,307,862,005.42
  5. Step 5: Solve for x
    x = 57,307,862,005.42/311,930.40
  6. Step 6: Final answer
    x = 183,720.03

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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.