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Finding the Fourth Proportional to 406.16, 606.32 and 376.12

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Solution

The fourth proportional to 406.16, 606.32 and 376.12 is: 561.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    406.16 : 606.32 = 376.12 : x
  2. Step 2: Convert to fraction form
    406.16/606.32 = 376.12/x
  3. Step 3: Cross multiply
    406.16x = 606.32 × 376.12
  4. Step 4: Simplify right side
    406.16x = 228,049.08
  5. Step 5: Solve for x
    x = 228,049.08/406.16
  6. Step 6: Final answer
    x = 561.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.