Finding the Fourth Proportional to 214.99, 322.49 and 52.68
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Solution
The fourth proportional to 214.99, 322.49 and 52.68 is: 79.01
Step by Step Solution
- Step 1: Write the proportion equation
214.99 : 322.49 = 52.68 : x - Step 2: Convert to fraction form
214.99/322.49 = 52.68/x - Step 3: Cross multiply
214.99x = 322.49 × 52.68 - Step 4: Simplify right side
214.99x = 16,986.90 - Step 5: Solve for x
x = 16,986.90/214.99 - Step 6: Final answer
x = 79.01
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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.