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Finding the Fourth Proportional to 433.06, 648.54 and 303.19

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Solution

The fourth proportional to 433.06, 648.54 and 303.19 is: 454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    433.06 : 648.54 = 303.19 : x
  2. Step 2: Convert to fraction form
    433.06/648.54 = 303.19/x
  3. Step 3: Cross multiply
    433.06x = 648.54 × 303.19
  4. Step 4: Simplify right side
    433.06x = 196,629.22
  5. Step 5: Solve for x
    x = 196,629.22/433.06
  6. Step 6: Final answer
    x = 454.05

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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.