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Finding the Fourth Proportional to 1,168.25, 1,752.31 and 302.54

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Solution

The fourth proportional to 1,168.25, 1,752.31 and 302.54 is: 453.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.25 : 1,752.31 = 302.54 : x
  2. Step 2: Convert to fraction form
    1,168.25/1,752.31 = 302.54/x
  3. Step 3: Cross multiply
    1,168.25x = 1,752.31 × 302.54
  4. Step 4: Simplify right side
    1,168.25x = 530,134.35
  5. Step 5: Solve for x
    x = 530,134.35/1,168.25
  6. Step 6: Final answer
    x = 453.79

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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.