Finding the Fourth Proportional to 302.62, 417.62 and 171.63
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Solution
The fourth proportional to 302.62, 417.62 and 171.63 is: 236.85
Step by Step Solution
- Step 1: Write the proportion equation
302.62 : 417.62 = 171.63 : x - Step 2: Convert to fraction form
302.62/417.62 = 171.63/x - Step 3: Cross multiply
302.62x = 417.62 × 171.63 - Step 4: Simplify right side
302.62x = 71,675.91 - Step 5: Solve for x
x = 71,675.91/302.62 - Step 6: Final answer
x = 236.85
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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.