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Finding the Fourth Proportional to 265.89, 366.86 and 160.89

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Solution

The fourth proportional to 265.89, 366.86 and 160.89 is: 221.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.89 : 366.86 = 160.89 : x
  2. Step 2: Convert to fraction form
    265.89/366.86 = 160.89/x
  3. Step 3: Cross multiply
    265.89x = 366.86 × 160.89
  4. Step 4: Simplify right side
    265.89x = 59,023.30
  5. Step 5: Solve for x
    x = 59,023.30/265.89
  6. Step 6: Final answer
    x = 221.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.