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Finding the Fourth Proportional to 1,234.08, 1,850.88 and 368.64

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Solution

The fourth proportional to 1,234.08, 1,850.88 and 368.64 is: 552.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234.08 : 1,850.88 = 368.64 : x
  2. Step 2: Convert to fraction form
    1,234.08/1,850.88 = 368.64/x
  3. Step 3: Cross multiply
    1,234.08x = 1,850.88 × 368.64
  4. Step 4: Simplify right side
    1,234.08x = 682,308.40
  5. Step 5: Solve for x
    x = 682,308.40/1,234.08
  6. Step 6: Final answer
    x = 552.89

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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.