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Finding the Fourth Proportional to 853.04, 1,279.53 and 236.73

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Solution

The fourth proportional to 853.04, 1,279.53 and 236.73 is: 355.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    853.04 : 1,279.53 = 236.73 : x
  2. Step 2: Convert to fraction form
    853.04/1,279.53 = 236.73/x
  3. Step 3: Cross multiply
    853.04x = 1,279.53 × 236.73
  4. Step 4: Simplify right side
    853.04x = 302,897.33
  5. Step 5: Solve for x
    x = 302,897.33/853.04
  6. Step 6: Final answer
    x = 355.08

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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.