Finding the Fourth Proportional to 170.31, 234.99 and 147.09
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Solution
The fourth proportional to 170.31, 234.99 and 147.09 is: 202.95
Step by Step Solution
- Step 1: Write the proportion equation
170.31 : 234.99 = 147.09 : x - Step 2: Convert to fraction form
170.31/234.99 = 147.09/x - Step 3: Cross multiply
170.31x = 234.99 × 147.09 - Step 4: Simplify right side
170.31x = 34,564.68 - Step 5: Solve for x
x = 34,564.68/170.31 - Step 6: Final answer
x = 202.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.