Home / 305,945.10-458,760.06-137,320.86

Finding the Fourth Proportional to 305,945.10, 458,760.06 and 137,320.86

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Solution

The fourth proportional to 305,945.10, 458,760.06 and 137,320.86 is: 205,910.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,945.10 : 458,760.06 = 137,320.86 : x
  2. Step 2: Convert to fraction form
    305,945.10/458,760.06 = 137,320.86/x
  3. Step 3: Cross multiply
    305,945.10x = 458,760.06 × 137,320.86
  4. Step 4: Simplify right side
    305,945.10x = 62,997,325,972.85
  5. Step 5: Solve for x
    x = 62,997,325,972.85/305,945.10
  6. Step 6: Final answer
    x = 205,910.56

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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.