Finding the Fourth Proportional to 302.98, 418.11 and 171.99
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Solution
The fourth proportional to 302.98, 418.11 and 171.99 is: 237.34
Step by Step Solution
- Step 1: Write the proportion equation
302.98 : 418.11 = 171.99 : x - Step 2: Convert to fraction form
302.98/418.11 = 171.99/x - Step 3: Cross multiply
302.98x = 418.11 × 171.99 - Step 4: Simplify right side
302.98x = 71,910.74 - Step 5: Solve for x
x = 71,910.74/302.98 - Step 6: Final answer
x = 237.34
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.