Finding the Fourth Proportional to 157.29, 216.99 and 98.30
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Solution
The fourth proportional to 157.29, 216.99 and 98.30 is: 135.62
Step by Step Solution
- Step 1: Write the proportion equation
157.29 : 216.99 = 98.30 : x - Step 2: Convert to fraction form
157.29/216.99 = 98.30/x - Step 3: Cross multiply
157.29x = 216.99 × 98.30 - Step 4: Simplify right side
157.29x = 21,330.49 - Step 5: Solve for x
x = 21,330.49/157.29 - Step 6: Final answer
x = 135.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.