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Finding the Fourth Proportional to 406.42, 608.16 and 352.22

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Solution

The fourth proportional to 406.42, 608.16 and 352.22 is: 527.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    406.42 : 608.16 = 352.22 : x
  2. Step 2: Convert to fraction form
    406.42/608.16 = 352.22/x
  3. Step 3: Cross multiply
    406.42x = 608.16 × 352.22
  4. Step 4: Simplify right side
    406.42x = 214,206.12
  5. Step 5: Solve for x
    x = 214,206.12/406.42
  6. Step 6: Final answer
    x = 527.06

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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.