Finding the Fourth Proportional to 268.83, 370.99 and 149.19
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Solution
The fourth proportional to 268.83, 370.99 and 149.19 is: 205.89
Step by Step Solution
- Step 1: Write the proportion equation
268.83 : 370.99 = 149.19 : x - Step 2: Convert to fraction form
268.83/370.99 = 149.19/x - Step 3: Cross multiply
268.83x = 370.99 × 149.19 - Step 4: Simplify right side
268.83x = 55,347.25 - Step 5: Solve for x
x = 55,347.25/268.83 - Step 6: Final answer
x = 205.89
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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.