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Finding the Fourth Proportional to 350.98, 481.51 and 328.90

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Solution

The fourth proportional to 350.98, 481.51 and 328.90 is: 451.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.98 : 481.51 = 328.90 : x
  2. Step 2: Convert to fraction form
    350.98/481.51 = 328.90/x
  3. Step 3: Cross multiply
    350.98x = 481.51 × 328.90
  4. Step 4: Simplify right side
    350.98x = 158,368.64
  5. Step 5: Solve for x
    x = 158,368.64/350.98
  6. Step 6: Final answer
    x = 451.22

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.