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Finding the Fourth Proportional to 534.29, 801.36 and 443.57

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Solution

The fourth proportional to 534.29, 801.36 and 443.57 is: 665.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.29 : 801.36 = 443.57 : x
  2. Step 2: Convert to fraction form
    534.29/801.36 = 443.57/x
  3. Step 3: Cross multiply
    534.29x = 801.36 × 443.57
  4. Step 4: Simplify right side
    534.29x = 355,457.04
  5. Step 5: Solve for x
    x = 355,457.04/534.29
  6. Step 6: Final answer
    x = 665.29

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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.