Finding the Fourth Proportional to 315,297.19, 435,123.19 and 179,355.09
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Solution
The fourth proportional to 315,297.19, 435,123.19 and 179,355.09 is: 247,517.46
Step by Step Solution
- Step 1: Write the proportion equation
315,297.19 : 435,123.19 = 179,355.09 : x - Step 2: Convert to fraction form
315,297.19/435,123.19 = 179,355.09/x - Step 3: Cross multiply
315,297.19x = 435,123.19 × 179,355.09 - Step 4: Simplify right side
315,297.19x = 78,041,560,759.44 - Step 5: Solve for x
x = 78,041,560,759.44/315,297.19 - Step 6: Final answer
x = 247,517.46
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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.