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Finding the Fourth Proportional to 1,176.04, 1,764.05 and 354.31

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Solution

The fourth proportional to 1,176.04, 1,764.05 and 354.31 is: 531.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.04 : 1,764.05 = 354.31 : x
  2. Step 2: Convert to fraction form
    1,176.04/1,764.05 = 354.31/x
  3. Step 3: Cross multiply
    1,176.04x = 1,764.05 × 354.31
  4. Step 4: Simplify right side
    1,176.04x = 625,020.56
  5. Step 5: Solve for x
    x = 625,020.56/1,176.04
  6. Step 6: Final answer
    x = 531.46

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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.