Home / 285,194.69-428,212.57-159,081.34

Finding the Fourth Proportional to 285,194.69, 428,212.57 and 159,081.34

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Solution

The fourth proportional to 285,194.69, 428,212.57 and 159,081.34 is: 238,856.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,194.69 : 428,212.57 = 159,081.34 : x
  2. Step 2: Convert to fraction form
    285,194.69/428,212.57 = 159,081.34/x
  3. Step 3: Cross multiply
    285,194.69x = 428,212.57 × 159,081.34
  4. Step 4: Simplify right side
    285,194.69x = 68,120,627,299.38
  5. Step 5: Solve for x
    x = 68,120,627,299.38/285,194.69
  6. Step 6: Final answer
    x = 238,856.58

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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.