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Finding the Fourth Proportional to 351.11, 526.97 and 205.00

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Solution

The fourth proportional to 351.11, 526.97 and 205.00 is: 307.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.11 : 526.97 = 205.00 : x
  2. Step 2: Convert to fraction form
    351.11/526.97 = 205.00/x
  3. Step 3: Cross multiply
    351.11x = 526.97 × 205.00
  4. Step 4: Simplify right side
    351.11x = 108,028.05
  5. Step 5: Solve for x
    x = 108,028.05/351.11
  6. Step 6: Final answer
    x = 307.67

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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.