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Finding the Fourth Proportional to 1,199.81, 1,799.74 and 334.15

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Solution

The fourth proportional to 1,199.81, 1,799.74 and 334.15 is: 501.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199.81 : 1,799.74 = 334.15 : x
  2. Step 2: Convert to fraction form
    1,199.81/1,799.74 = 334.15/x
  3. Step 3: Cross multiply
    1,199.81x = 1,799.74 × 334.15
  4. Step 4: Simplify right side
    1,199.81x = 601,379.04
  5. Step 5: Solve for x
    x = 601,379.04/1,199.81
  6. Step 6: Final answer
    x = 501.23

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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.