Home / 386,469.20-579,703.80-165,285.20

Finding the Fourth Proportional to 386,469.20, 579,703.80 and 165,285.20

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Solution

The fourth proportional to 386,469.20, 579,703.80 and 165,285.20 is: 247,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,469.20 : 579,703.80 = 165,285.20 : x
  2. Step 2: Convert to fraction form
    386,469.20/579,703.80 = 165,285.20/x
  3. Step 3: Cross multiply
    386,469.20x = 579,703.80 × 165,285.20
  4. Step 4: Simplify right side
    386,469.20x = 95,816,458,523.76
  5. Step 5: Solve for x
    x = 95,816,458,523.76/386,469.20
  6. Step 6: Final answer
    x = 247,927.80

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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.