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Finding the Fourth Proportional to 409.56, 613.35 and 301.26

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Solution

The fourth proportional to 409.56, 613.35 and 301.26 is: 451.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    409.56 : 613.35 = 301.26 : x
  2. Step 2: Convert to fraction form
    409.56/613.35 = 301.26/x
  3. Step 3: Cross multiply
    409.56x = 613.35 × 301.26
  4. Step 4: Simplify right side
    409.56x = 184,777.82
  5. Step 5: Solve for x
    x = 184,777.82/409.56
  6. Step 6: Final answer
    x = 451.16

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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.