Home / 351,861.34-485,556.83-208,536.29

Finding the Fourth Proportional to 351,861.34, 485,556.83 and 208,536.29

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Solution

The fourth proportional to 351,861.34, 485,556.83 and 208,536.29 is: 287,773.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,861.34 : 485,556.83 = 208,536.29 : x
  2. Step 2: Convert to fraction form
    351,861.34/485,556.83 = 208,536.29/x
  3. Step 3: Cross multiply
    351,861.34x = 485,556.83 × 208,536.29
  4. Step 4: Simplify right side
    351,861.34x = 101,256,219,912.36
  5. Step 5: Solve for x
    x = 101,256,219,912.36/351,861.34
  6. Step 6: Final answer
    x = 287,773.08

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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.