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Finding the Fourth Proportional to 336.56, 461.48 and 303.68

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Solution

The fourth proportional to 336.56, 461.48 and 303.68 is: 416.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.56 : 461.48 = 303.68 : x
  2. Step 2: Convert to fraction form
    336.56/461.48 = 303.68/x
  3. Step 3: Cross multiply
    336.56x = 461.48 × 303.68
  4. Step 4: Simplify right side
    336.56x = 140,142.25
  5. Step 5: Solve for x
    x = 140,142.25/336.56
  6. Step 6: Final answer
    x = 416.40

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.