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Finding the Third Proportional to 273.56 and 435.19

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Solution

The third proportional to 273.56 and 435.19 is: 692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.56 : 435.19 = 435.19 : x
  2. Step 2: Convert to fraction form
    273.56/435.19 = 435.19/x
  3. Step 3: Cross multiply
    273.56x = 435.19 × 435.19
  4. Step 4: Simplify right side
    273.56x = 189,388.16
  5. Step 5: Solve for x
    x = 189,388.16/273.56
  6. Step 6: Final answer
    x = 692.30

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.