Finding the Fourth Proportional to 177.95, 266.99 and 69.75
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Solution
The fourth proportional to 177.95, 266.99 and 69.75 is: 104.65
Step by Step Solution
- Step 1: Write the proportion equation
177.95 : 266.99 = 69.75 : x - Step 2: Convert to fraction form
177.95/266.99 = 69.75/x - Step 3: Cross multiply
177.95x = 266.99 × 69.75 - Step 4: Simplify right side
177.95x = 18,622.20 - Step 5: Solve for x
x = 18,622.20/177.95 - Step 6: Final answer
x = 104.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.