Finding the Fourth Proportional to 177.44, 266.09 and 69.21
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Solution
The fourth proportional to 177.44, 266.09 and 69.21 is: 103.79
Step by Step Solution
- Step 1: Write the proportion equation
177.44 : 266.09 = 69.21 : x - Step 2: Convert to fraction form
177.44/266.09 = 69.21/x - Step 3: Cross multiply
177.44x = 266.09 × 69.21 - Step 4: Simplify right side
177.44x = 18,415.74 - Step 5: Solve for x
x = 18,415.74/177.44 - Step 6: Final answer
x = 103.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.