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Finding the Fourth Proportional to 303, 454.32 and 129.54

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Solution

The fourth proportional to 303, 454.32 and 129.54 is: 194.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    303 : 454.32 = 129.54 : x
  2. Step 2: Convert to fraction form
    303/454.32 = 129.54/x
  3. Step 3: Cross multiply
    303x = 454.32 × 129.54
  4. Step 4: Simplify right side
    303x = 58,852.61
  5. Step 5: Solve for x
    x = 58,852.61/303
  6. Step 6: Final answer
    x = 194.23

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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.