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Finding the Fourth Proportional to 440.38, 659.51 and 336.88

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Solution

The fourth proportional to 440.38, 659.51 and 336.88 is: 504.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.38 : 659.51 = 336.88 : x
  2. Step 2: Convert to fraction form
    440.38/659.51 = 336.88/x
  3. Step 3: Cross multiply
    440.38x = 659.51 × 336.88
  4. Step 4: Simplify right side
    440.38x = 222,172.40
  5. Step 5: Solve for x
    x = 222,172.40/440.38
  6. Step 6: Final answer
    x = 504.50

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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.