Finding the Fourth Proportional to 322.97, 485.36 and 192.99
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Solution
The fourth proportional to 322.97, 485.36 and 192.99 is: 290.03
Step by Step Solution
- Step 1: Write the proportion equation
322.97 : 485.36 = 192.99 : x - Step 2: Convert to fraction form
322.97/485.36 = 192.99/x - Step 3: Cross multiply
322.97x = 485.36 × 192.99 - Step 4: Simplify right side
322.97x = 93,670.11 - Step 5: Solve for x
x = 93,670.11/322.97 - Step 6: Final answer
x = 290.03
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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.