Finding the Fourth Proportional to 356.97, 492.67 and 209.66
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Solution
The fourth proportional to 356.97, 492.67 and 209.66 is: 289.35
Step by Step Solution
- Step 1: Write the proportion equation
356.97 : 492.67 = 209.66 : x - Step 2: Convert to fraction form
356.97/492.67 = 209.66/x - Step 3: Cross multiply
356.97x = 492.67 × 209.66 - Step 4: Simplify right side
356.97x = 103,290.99 - Step 5: Solve for x
x = 103,290.99/356.97 - Step 6: Final answer
x = 289.35
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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.