Finding the Fourth Proportional to 167.19, 230.64 and 117.99
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Solution
The fourth proportional to 167.19, 230.64 and 117.99 is: 162.77
Step by Step Solution
- Step 1: Write the proportion equation
167.19 : 230.64 = 117.99 : x - Step 2: Convert to fraction form
167.19/230.64 = 117.99/x - Step 3: Cross multiply
167.19x = 230.64 × 117.99 - Step 4: Simplify right side
167.19x = 27,213.21 - Step 5: Solve for x
x = 27,213.21/167.19 - Step 6: Final answer
x = 162.77
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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.