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Finding the Fourth Proportional to 1,199.92, 1,799.83 and 334.21

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Solution

The fourth proportional to 1,199.92, 1,799.83 and 334.21 is: 501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199.92 : 1,799.83 = 334.21 : x
  2. Step 2: Convert to fraction form
    1,199.92/1,799.83 = 334.21/x
  3. Step 3: Cross multiply
    1,199.92x = 1,799.83 × 334.21
  4. Step 4: Simplify right side
    1,199.92x = 601,521.18
  5. Step 5: Solve for x
    x = 601,521.18/1,199.92
  6. Step 6: Final answer
    x = 501.30

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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.