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Finding the Fourth Proportional to 265.70, 367.00 and 191.90

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Solution

The fourth proportional to 265.70, 367.00 and 191.90 is: 265.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.70 : 367.00 = 191.90 : x
  2. Step 2: Convert to fraction form
    265.70/367.00 = 191.90/x
  3. Step 3: Cross multiply
    265.70x = 367.00 × 191.90
  4. Step 4: Simplify right side
    265.70x = 70,427.74
  5. Step 5: Solve for x
    x = 70,427.74/265.70
  6. Step 6: Final answer
    x = 265.06

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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.