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Finding the Fourth Proportional to 350.22, 482.07 and 308.88

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Solution

The fourth proportional to 350.22, 482.07 and 308.88 is: 425.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.22 : 482.07 = 308.88 : x
  2. Step 2: Convert to fraction form
    350.22/482.07 = 308.88/x
  3. Step 3: Cross multiply
    350.22x = 482.07 × 308.88
  4. Step 4: Simplify right side
    350.22x = 148,901.78
  5. Step 5: Solve for x
    x = 148,901.78/350.22
  6. Step 6: Final answer
    x = 425.17

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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.