Finding the Fourth Proportional to 157.19, 235.79 and 60.99
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Solution
The fourth proportional to 157.19, 235.79 and 60.99 is: 91.49
Step by Step Solution
- Step 1: Write the proportion equation
157.19 : 235.79 = 60.99 : x - Step 2: Convert to fraction form
157.19/235.79 = 60.99/x - Step 3: Cross multiply
157.19x = 235.79 × 60.99 - Step 4: Simplify right side
157.19x = 14,380.53 - Step 5: Solve for x
x = 14,380.53/157.19 - Step 6: Final answer
x = 91.49
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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.