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Finding the Fourth Proportional to 351.88, 526.76 and 230.20

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Solution

The fourth proportional to 351.88, 526.76 and 230.20 is: 344.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.88 : 526.76 = 230.20 : x
  2. Step 2: Convert to fraction form
    351.88/526.76 = 230.20/x
  3. Step 3: Cross multiply
    351.88x = 526.76 × 230.20
  4. Step 4: Simplify right side
    351.88x = 121,260.15
  5. Step 5: Solve for x
    x = 121,260.15/351.88
  6. Step 6: Final answer
    x = 344.61

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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.