Finding the Fourth Proportional to 177.99, 266.85 and 147.75
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Solution
The fourth proportional to 177.99, 266.85 and 147.75 is: 221.51
Step by Step Solution
- Step 1: Write the proportion equation
177.99 : 266.85 = 147.75 : x - Step 2: Convert to fraction form
177.99/266.85 = 147.75/x - Step 3: Cross multiply
177.99x = 266.85 × 147.75 - Step 4: Simplify right side
177.99x = 39,427.09 - Step 5: Solve for x
x = 39,427.09/177.99 - Step 6: Final answer
x = 221.51
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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.