Finding the Fourth Proportional to 210.60, 315.73 and 94.99
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Solution
The fourth proportional to 210.60, 315.73 and 94.99 is: 142.41
Step by Step Solution
- Step 1: Write the proportion equation
210.60 : 315.73 = 94.99 : x - Step 2: Convert to fraction form
210.60/315.73 = 94.99/x - Step 3: Cross multiply
210.60x = 315.73 × 94.99 - Step 4: Simplify right side
210.60x = 29,991.19 - Step 5: Solve for x
x = 29,991.19/210.60 - Step 6: Final answer
x = 142.41
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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.