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Finding the Fourth Proportional to 348.67, 523.26 and 281.01

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Solution

The fourth proportional to 348.67, 523.26 and 281.01 is: 421.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.67 : 523.26 = 281.01 : x
  2. Step 2: Convert to fraction form
    348.67/523.26 = 281.01/x
  3. Step 3: Cross multiply
    348.67x = 523.26 × 281.01
  4. Step 4: Simplify right side
    348.67x = 147,040.24
  5. Step 5: Solve for x
    x = 147,040.24/348.67
  6. Step 6: Final answer
    x = 421.72

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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.