Home / 285,743.56-428,618.58-108,202.36

Finding the Fourth Proportional to 285,743.56, 428,618.58 and 108,202.36

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Solution

The fourth proportional to 285,743.56, 428,618.58 and 108,202.36 is: 162,304.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,743.56 : 428,618.58 = 108,202.36 : x
  2. Step 2: Convert to fraction form
    285,743.56/428,618.58 = 108,202.36/x
  3. Step 3: Cross multiply
    285,743.56x = 428,618.58 × 108,202.36
  4. Step 4: Simplify right side
    285,743.56x = 46,377,541,895.85
  5. Step 5: Solve for x
    x = 46,377,541,895.85/285,743.56
  6. Step 6: Final answer
    x = 162,304.77

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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.