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Finding the Fourth Proportional to 351.32, 522.83 and 338.36

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Solution

The fourth proportional to 351.32, 522.83 and 338.36 is: 503.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.32 : 522.83 = 338.36 : x
  2. Step 2: Convert to fraction form
    351.32/522.83 = 338.36/x
  3. Step 3: Cross multiply
    351.32x = 522.83 × 338.36
  4. Step 4: Simplify right side
    351.32x = 176,902.99
  5. Step 5: Solve for x
    x = 176,902.99/351.32
  6. Step 6: Final answer
    x = 503.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.