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Finding the Fourth Proportional to 1,226.82, 1,840.23 and 360.93

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Solution

The fourth proportional to 1,226.82, 1,840.23 and 360.93 is: 541.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226.82 : 1,840.23 = 360.93 : x
  2. Step 2: Convert to fraction form
    1,226.82/1,840.23 = 360.93/x
  3. Step 3: Cross multiply
    1,226.82x = 1,840.23 × 360.93
  4. Step 4: Simplify right side
    1,226.82x = 664,194.21
  5. Step 5: Solve for x
    x = 664,194.21/1,226.82
  6. Step 6: Final answer
    x = 541.40

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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.