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Finding the Fourth Proportional to 336.21, 464.05 and 203.46

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Solution

The fourth proportional to 336.21, 464.05 and 203.46 is: 280.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.21 : 464.05 = 203.46 : x
  2. Step 2: Convert to fraction form
    336.21/464.05 = 203.46/x
  3. Step 3: Cross multiply
    336.21x = 464.05 × 203.46
  4. Step 4: Simplify right side
    336.21x = 94,415.61
  5. Step 5: Solve for x
    x = 94,415.61/336.21
  6. Step 6: Final answer
    x = 280.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.