Finding the Fourth Proportional to 290,331.80, 435,497.70 and 248,859.80
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Solution
The fourth proportional to 290,331.80, 435,497.70 and 248,859.80 is: 373,289.70
Step by Step Solution
- Step 1: Write the proportion equation
290,331.80 : 435,497.70 = 248,859.80 : x - Step 2: Convert to fraction form
290,331.80/435,497.70 = 248,859.80/x - Step 3: Cross multiply
290,331.80x = 435,497.70 × 248,859.80 - Step 4: Simplify right side
290,331.80x = 108,377,870,522.46 - Step 5: Solve for x
x = 108,377,870,522.46/290,331.80 - Step 6: Final answer
x = 373,289.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.