Finding the Fourth Proportional to 369.21, 553.17 and 328.99
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Solution
The fourth proportional to 369.21, 553.17 and 328.99 is: 492.91
Step by Step Solution
- Step 1: Write the proportion equation
369.21 : 553.17 = 328.99 : x - Step 2: Convert to fraction form
369.21/553.17 = 328.99/x - Step 3: Cross multiply
369.21x = 553.17 × 328.99 - Step 4: Simplify right side
369.21x = 181,988.99 - Step 5: Solve for x
x = 181,988.99/369.21 - Step 6: Final answer
x = 492.91
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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.