Finding the Fourth Proportional to 201,778.66, 278,450.49 and 126,368.74
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Solution
The fourth proportional to 201,778.66, 278,450.49 and 126,368.74 is: 174,386.32
Step by Step Solution
- Step 1: Write the proportion equation
201,778.66 : 278,450.49 = 126,368.74 : x - Step 2: Convert to fraction form
201,778.66/278,450.49 = 126,368.74/x - Step 3: Cross multiply
201,778.66x = 278,450.49 × 126,368.74 - Step 4: Simplify right side
201,778.66x = 35,187,437,573.68 - Step 5: Solve for x
x = 35,187,437,573.68/201,778.66 - Step 6: Final answer
x = 174,386.32
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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.