Finding the Fourth Proportional to 157.88, 236.93 and 61.70
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Solution
The fourth proportional to 157.88, 236.93 and 61.70 is: 92.59
Step by Step Solution
- Step 1: Write the proportion equation
157.88 : 236.93 = 61.70 : x - Step 2: Convert to fraction form
157.88/236.93 = 61.70/x - Step 3: Cross multiply
157.88x = 236.93 × 61.70 - Step 4: Simplify right side
157.88x = 14,617.09 - Step 5: Solve for x
x = 14,617.09/157.88 - Step 6: Final answer
x = 92.59
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.