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Finding the Fourth Proportional to 498.56, 746.26 and 343.58

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Solution

The fourth proportional to 498.56, 746.26 and 343.58 is: 514.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.56 : 746.26 = 343.58 : x
  2. Step 2: Convert to fraction form
    498.56/746.26 = 343.58/x
  3. Step 3: Cross multiply
    498.56x = 746.26 × 343.58
  4. Step 4: Simplify right side
    498.56x = 256,400.01
  5. Step 5: Solve for x
    x = 256,400.01/498.56
  6. Step 6: Final answer
    x = 514.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.