Finding the Fourth Proportional to 177.31, 265.75 and 68.99
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Solution
The fourth proportional to 177.31, 265.75 and 68.99 is: 103.40
Step by Step Solution
- Step 1: Write the proportion equation
177.31 : 265.75 = 68.99 : x - Step 2: Convert to fraction form
177.31/265.75 = 68.99/x - Step 3: Cross multiply
177.31x = 265.75 × 68.99 - Step 4: Simplify right side
177.31x = 18,334.09 - Step 5: Solve for x
x = 18,334.09/177.31 - Step 6: Final answer
x = 103.40
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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.