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Finding the Fourth Proportional to 1,203.92, 1,806.23 and 359.64

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Solution

The fourth proportional to 1,203.92, 1,806.23 and 359.64 is: 539.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203.92 : 1,806.23 = 359.64 : x
  2. Step 2: Convert to fraction form
    1,203.92/1,806.23 = 359.64/x
  3. Step 3: Cross multiply
    1,203.92x = 1,806.23 × 359.64
  4. Step 4: Simplify right side
    1,203.92x = 649,592.56
  5. Step 5: Solve for x
    x = 649,592.56/1,203.92
  6. Step 6: Final answer
    x = 539.56

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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.