Finding the Fourth Proportional to 158.22, 236.99 and 117.99
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Solution
The fourth proportional to 158.22, 236.99 and 117.99 is: 176.73
Step by Step Solution
- Step 1: Write the proportion equation
158.22 : 236.99 = 117.99 : x - Step 2: Convert to fraction form
158.22/236.99 = 117.99/x - Step 3: Cross multiply
158.22x = 236.99 × 117.99 - Step 4: Simplify right side
158.22x = 27,962.75 - Step 5: Solve for x
x = 27,962.75/158.22 - Step 6: Final answer
x = 176.73
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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.