Home / 210,861.29-290,995.83-115,367.96

Finding the Fourth Proportional to 210,861.29, 290,995.83 and 115,367.96

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Solution

The fourth proportional to 210,861.29, 290,995.83 and 115,367.96 is: 159,211.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,861.29 : 290,995.83 = 115,367.96 : x
  2. Step 2: Convert to fraction form
    210,861.29/290,995.83 = 115,367.96/x
  3. Step 3: Cross multiply
    210,861.29x = 290,995.83 × 115,367.96
  4. Step 4: Simplify right side
    210,861.29x = 33,571,593,243.79
  5. Step 5: Solve for x
    x = 33,571,593,243.79/210,861.29
  6. Step 6: Final answer
    x = 159,211.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.