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Finding the Fourth Proportional to 336.60, 464.40 and 220.23

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Solution

The fourth proportional to 336.60, 464.40 and 220.23 is: 303.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.60 : 464.40 = 220.23 : x
  2. Step 2: Convert to fraction form
    336.60/464.40 = 220.23/x
  3. Step 3: Cross multiply
    336.60x = 464.40 × 220.23
  4. Step 4: Simplify right side
    336.60x = 102,274.81
  5. Step 5: Solve for x
    x = 102,274.81/336.60
  6. Step 6: Final answer
    x = 303.85

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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.