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Finding the Fourth Proportional to 537.08, 805.49 and 445.82

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Solution

The fourth proportional to 537.08, 805.49 and 445.82 is: 668.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.08 : 805.49 = 445.82 : x
  2. Step 2: Convert to fraction form
    537.08/805.49 = 445.82/x
  3. Step 3: Cross multiply
    537.08x = 805.49 × 445.82
  4. Step 4: Simplify right side
    537.08x = 359,101.32
  5. Step 5: Solve for x
    x = 359,101.32/537.08
  6. Step 6: Final answer
    x = 668.62

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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.