Home / 384,636.33-576,979.11-147,979.04

Finding the Fourth Proportional to 384,636.33, 576,979.11 and 147,979.04

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Solution

The fourth proportional to 384,636.33, 576,979.11 and 147,979.04 is: 221,978.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,636.33 : 576,979.11 = 147,979.04 : x
  2. Step 2: Convert to fraction form
    384,636.33/576,979.11 = 147,979.04/x
  3. Step 3: Cross multiply
    384,636.33x = 576,979.11 × 147,979.04
  4. Step 4: Simplify right side
    384,636.33x = 85,380,811,912.96
  5. Step 5: Solve for x
    x = 85,380,811,912.96/384,636.33
  6. Step 6: Final answer
    x = 221,978.02

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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.