Finding the Fourth Proportional to 201,669.75, 278,299.35 and 111,024.99
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Solution
The fourth proportional to 201,669.75, 278,299.35 and 111,024.99 is: 153,211.79
Step by Step Solution
- Step 1: Write the proportion equation
201,669.75 : 278,299.35 = 111,024.99 : x - Step 2: Convert to fraction form
201,669.75/278,299.35 = 111,024.99/x - Step 3: Cross multiply
201,669.75x = 278,299.35 × 111,024.99 - Step 4: Simplify right side
201,669.75x = 30,898,182,550.76 - Step 5: Solve for x
x = 30,898,182,550.76/201,669.75 - Step 6: Final answer
x = 153,211.79
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1.5x scale
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.