Finding the Fourth Proportional to 157.93, 236.88 and 49.70
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Solution
The fourth proportional to 157.93, 236.88 and 49.70 is: 74.55
Step by Step Solution
- Step 1: Write the proportion equation
157.93 : 236.88 = 49.70 : x - Step 2: Convert to fraction form
157.93/236.88 = 49.70/x - Step 3: Cross multiply
157.93x = 236.88 × 49.70 - Step 4: Simplify right side
157.93x = 11,773.53 - Step 5: Solve for x
x = 11,773.53/157.93 - Step 6: Final answer
x = 74.55
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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.