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Finding the Fourth Proportional to 344.24, 475.74 and 281.98

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Solution

The fourth proportional to 344.24, 475.74 and 281.98 is: 389.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.24 : 475.74 = 281.98 : x
  2. Step 2: Convert to fraction form
    344.24/475.74 = 281.98/x
  3. Step 3: Cross multiply
    344.24x = 475.74 × 281.98
  4. Step 4: Simplify right side
    344.24x = 134,147.08
  5. Step 5: Solve for x
    x = 134,147.08/344.24
  6. Step 6: Final answer
    x = 389.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.