Home / 427,876.56-641,464.92-161,485.38

Finding the Fourth Proportional to 427,876.56, 641,464.92 and 161,485.38

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Solution

The fourth proportional to 427,876.56, 641,464.92 and 161,485.38 is: 242,096.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,876.56 : 641,464.92 = 161,485.38 : x
  2. Step 2: Convert to fraction form
    427,876.56/641,464.92 = 161,485.38/x
  3. Step 3: Cross multiply
    427,876.56x = 641,464.92 × 161,485.38
  4. Step 4: Simplify right side
    427,876.56x = 103,587,206,362.87
  5. Step 5: Solve for x
    x = 103,587,206,362.87/427,876.56
  6. Step 6: Final answer
    x = 242,096.01

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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.