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Finding the Fourth Proportional to 351.48, 526.21 and 229.37

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Solution

The fourth proportional to 351.48, 526.21 and 229.37 is: 343.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.48 : 526.21 = 229.37 : x
  2. Step 2: Convert to fraction form
    351.48/526.21 = 229.37/x
  3. Step 3: Cross multiply
    351.48x = 526.21 × 229.37
  4. Step 4: Simplify right side
    351.48x = 120,697.53
  5. Step 5: Solve for x
    x = 120,697.53/351.48
  6. Step 6: Final answer
    x = 343.40

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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.