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Finding the Fourth Proportional to 344.24, 475.03 and 256.76

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Solution

The fourth proportional to 344.24, 475.03 and 256.76 is: 354.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.24 : 475.03 = 256.76 : x
  2. Step 2: Convert to fraction form
    344.24/475.03 = 256.76/x
  3. Step 3: Cross multiply
    344.24x = 475.03 × 256.76
  4. Step 4: Simplify right side
    344.24x = 121,968.70
  5. Step 5: Solve for x
    x = 121,968.70/344.24
  6. Step 6: Final answer
    x = 354.31

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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.