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Finding the Fourth Proportional to 492.54, 739.62 and 348.36

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Solution

The fourth proportional to 492.54, 739.62 and 348.36 is: 523.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.54 : 739.62 = 348.36 : x
  2. Step 2: Convert to fraction form
    492.54/739.62 = 348.36/x
  3. Step 3: Cross multiply
    492.54x = 739.62 × 348.36
  4. Step 4: Simplify right side
    492.54x = 257,654.02
  5. Step 5: Solve for x
    x = 257,654.02/492.54
  6. Step 6: Final answer
    x = 523.11

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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.