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Finding the Fourth Proportional to 539.19, 744.30 and 352.83

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Solution

The fourth proportional to 539.19, 744.30 and 352.83 is: 487.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.19 : 744.30 = 352.83 : x
  2. Step 2: Convert to fraction form
    539.19/744.30 = 352.83/x
  3. Step 3: Cross multiply
    539.19x = 744.30 × 352.83
  4. Step 4: Simplify right side
    539.19x = 262,611.37
  5. Step 5: Solve for x
    x = 262,611.37/539.19
  6. Step 6: Final answer
    x = 487.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.