Finding the Fourth Proportional to 349.49, 482.08 and 216.75
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Solution
The fourth proportional to 349.49, 482.08 and 216.75 is: 298.98
Step by Step Solution
- Step 1: Write the proportion equation
349.49 : 482.08 = 216.75 : x - Step 2: Convert to fraction form
349.49/482.08 = 216.75/x - Step 3: Cross multiply
349.49x = 482.08 × 216.75 - Step 4: Simplify right side
349.49x = 104,490.55 - Step 5: Solve for x
x = 104,490.55/349.49 - Step 6: Final answer
x = 298.98
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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.