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Finding the Fourth Proportional to 352.05, 529.91 and 299.20

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Solution

The fourth proportional to 352.05, 529.91 and 299.20 is: 450.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.05 : 529.91 = 299.20 : x
  2. Step 2: Convert to fraction form
    352.05/529.91 = 299.20/x
  3. Step 3: Cross multiply
    352.05x = 529.91 × 299.20
  4. Step 4: Simplify right side
    352.05x = 158,549.07
  5. Step 5: Solve for x
    x = 158,549.07/352.05
  6. Step 6: Final answer
    x = 450.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.