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Finding the Fourth Proportional to 275.94, 415.36 and 236.35

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Solution

The fourth proportional to 275.94, 415.36 and 236.35 is: 355.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.94 : 415.36 = 236.35 : x
  2. Step 2: Convert to fraction form
    275.94/415.36 = 236.35/x
  3. Step 3: Cross multiply
    275.94x = 415.36 × 236.35
  4. Step 4: Simplify right side
    275.94x = 98,171.15
  5. Step 5: Solve for x
    x = 98,171.15/275.94
  6. Step 6: Final answer
    x = 355.77

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.