Finding the Fourth Proportional to 302.08, 416.36 and 239.62
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Solution
The fourth proportional to 302.08, 416.36 and 239.62 is: 330.27
Step by Step Solution
- Step 1: Write the proportion equation
302.08 : 416.36 = 239.62 : x - Step 2: Convert to fraction form
302.08/416.36 = 239.62/x - Step 3: Cross multiply
302.08x = 416.36 × 239.62 - Step 4: Simplify right side
302.08x = 99,768.18 - Step 5: Solve for x
x = 99,768.18/302.08 - Step 6: Final answer
x = 330.27
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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.