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Finding the Fourth Proportional to 277.70, 383.25 and 159.69

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Solution

The fourth proportional to 277.70, 383.25 and 159.69 is: 220.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.70 : 383.25 = 159.69 : x
  2. Step 2: Convert to fraction form
    277.70/383.25 = 159.69/x
  3. Step 3: Cross multiply
    277.70x = 383.25 × 159.69
  4. Step 4: Simplify right side
    277.70x = 61,201.19
  5. Step 5: Solve for x
    x = 61,201.19/277.70
  6. Step 6: Final answer
    x = 220.39

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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.