Finding the Fourth Proportional to 158.13, 236.82 and 89.47
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Solution
The fourth proportional to 158.13, 236.82 and 89.47 is: 133.99
Step by Step Solution
- Step 1: Write the proportion equation
158.13 : 236.82 = 89.47 : x - Step 2: Convert to fraction form
158.13/236.82 = 89.47/x - Step 3: Cross multiply
158.13x = 236.82 × 89.47 - Step 4: Simplify right side
158.13x = 21,188.29 - Step 5: Solve for x
x = 21,188.29/158.13 - Step 6: Final answer
x = 133.99
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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.