Finding the Fourth Proportional to 216,811.48, 325,136.42 and 74,616.99
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Solution
The fourth proportional to 216,811.48, 325,136.42 and 74,616.99 is: 111,897.68
Step by Step Solution
- Step 1: Write the proportion equation
216,811.48 : 325,136.42 = 74,616.99 : x - Step 2: Convert to fraction form
216,811.48/325,136.42 = 74,616.99/x - Step 3: Cross multiply
216,811.48x = 325,136.42 × 74,616.99 - Step 4: Simplify right side
216,811.48x = 24,260,700,999.78 - Step 5: Solve for x
x = 24,260,700,999.78/216,811.48 - Step 6: Final answer
x = 111,897.68
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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.