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Finding the Fourth Proportional to 1,203.23, 1,804.68 and 325.80

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Solution

The fourth proportional to 1,203.23, 1,804.68 and 325.80 is: 488.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203.23 : 1,804.68 = 325.80 : x
  2. Step 2: Convert to fraction form
    1,203.23/1,804.68 = 325.80/x
  3. Step 3: Cross multiply
    1,203.23x = 1,804.68 × 325.80
  4. Step 4: Simplify right side
    1,203.23x = 587,964.74
  5. Step 5: Solve for x
    x = 587,964.74/1,203.23
  6. Step 6: Final answer
    x = 488.65

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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.