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Finding the Fourth Proportional to 645.05, 967.52 and 352.77

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Solution

The fourth proportional to 645.05, 967.52 and 352.77 is: 529.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    645.05 : 967.52 = 352.77 : x
  2. Step 2: Convert to fraction form
    645.05/967.52 = 352.77/x
  3. Step 3: Cross multiply
    645.05x = 967.52 × 352.77
  4. Step 4: Simplify right side
    645.05x = 341,310.27
  5. Step 5: Solve for x
    x = 341,310.27/645.05
  6. Step 6: Final answer
    x = 529.13

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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.