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Finding the Fourth Proportional to 350.75, 482.58 and 342.56

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Solution

The fourth proportional to 350.75, 482.58 and 342.56 is: 471.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.75 : 482.58 = 342.56 : x
  2. Step 2: Convert to fraction form
    350.75/482.58 = 342.56/x
  3. Step 3: Cross multiply
    350.75x = 482.58 × 342.56
  4. Step 4: Simplify right side
    350.75x = 165,310.19
  5. Step 5: Solve for x
    x = 165,310.19/350.75
  6. Step 6: Final answer
    x = 471.31

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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.