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Finding the Fourth Proportional to 350.12, 482.63 and 256.97

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Solution

The fourth proportional to 350.12, 482.63 and 256.97 is: 354.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.12 : 482.63 = 256.97 : x
  2. Step 2: Convert to fraction form
    350.12/482.63 = 256.97/x
  3. Step 3: Cross multiply
    350.12x = 482.63 × 256.97
  4. Step 4: Simplify right side
    350.12x = 124,021.35
  5. Step 5: Solve for x
    x = 124,021.35/350.12
  6. Step 6: Final answer
    x = 354.22

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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.