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Finding the Fourth Proportional to 351.82, 485.81 and 264.34

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Solution

The fourth proportional to 351.82, 485.81 and 264.34 is: 365.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.82 : 485.81 = 264.34 : x
  2. Step 2: Convert to fraction form
    351.82/485.81 = 264.34/x
  3. Step 3: Cross multiply
    351.82x = 485.81 × 264.34
  4. Step 4: Simplify right side
    351.82x = 128,419.02
  5. Step 5: Solve for x
    x = 128,419.02/351.82
  6. Step 6: Final answer
    x = 365.01

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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.