Finding the Fourth Proportional to 235,706.98, 325,269.38 and 128,274.70
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Solution
The fourth proportional to 235,706.98, 325,269.38 and 128,274.70 is: 177,015.68
Step by Step Solution
- Step 1: Write the proportion equation
235,706.98 : 325,269.38 = 128,274.70 : x - Step 2: Convert to fraction form
235,706.98/325,269.38 = 128,274.70/x - Step 3: Cross multiply
235,706.98x = 325,269.38 × 128,274.70 - Step 4: Simplify right side
235,706.98x = 41,723,830,512.34 - Step 5: Solve for x
x = 41,723,830,512.34/235,706.98 - Step 6: Final answer
x = 177,015.68
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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.