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Finding the Fourth Proportional to 344.18, 475.01 and 285.86

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Solution

The fourth proportional to 344.18, 475.01 and 285.86 is: 394.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.18 : 475.01 = 285.86 : x
  2. Step 2: Convert to fraction form
    344.18/475.01 = 285.86/x
  3. Step 3: Cross multiply
    344.18x = 475.01 × 285.86
  4. Step 4: Simplify right side
    344.18x = 135,786.36
  5. Step 5: Solve for x
    x = 135,786.36/344.18
  6. Step 6: Final answer
    x = 394.52

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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.