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Finding the Fourth Proportional to 552.11, 828.16 and 443.68

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Solution

The fourth proportional to 552.11, 828.16 and 443.68 is: 665.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.11 : 828.16 = 443.68 : x
  2. Step 2: Convert to fraction form
    552.11/828.16 = 443.68/x
  3. Step 3: Cross multiply
    552.11x = 828.16 × 443.68
  4. Step 4: Simplify right side
    552.11x = 367,434.85
  5. Step 5: Solve for x
    x = 367,434.85/552.11
  6. Step 6: Final answer
    x = 665.52

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.