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Finding the Fourth Proportional to 351.37, 526.75 and 168.64

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Solution

The fourth proportional to 351.37, 526.75 and 168.64 is: 252.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.37 : 526.75 = 168.64 : x
  2. Step 2: Convert to fraction form
    351.37/526.75 = 168.64/x
  3. Step 3: Cross multiply
    351.37x = 526.75 × 168.64
  4. Step 4: Simplify right side
    351.37x = 88,831.81
  5. Step 5: Solve for x
    x = 88,831.81/351.37
  6. Step 6: Final answer
    x = 252.81

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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.