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Finding the Fourth Proportional to 335.54, 462.46 and 283.22

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Solution

The fourth proportional to 335.54, 462.46 and 283.22 is: 390.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.54 : 462.46 = 283.22 : x
  2. Step 2: Convert to fraction form
    335.54/462.46 = 283.22/x
  3. Step 3: Cross multiply
    335.54x = 462.46 × 283.22
  4. Step 4: Simplify right side
    335.54x = 130,978.37
  5. Step 5: Solve for x
    x = 130,978.37/335.54
  6. Step 6: Final answer
    x = 390.35

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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.