Finding the Fourth Proportional to 287,467.20, 393,831.48 and 276,692.99
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Solution
The fourth proportional to 287,467.20, 393,831.48 and 276,692.99 is: 379,070.75
Step by Step Solution
- Step 1: Write the proportion equation
287,467.20 : 393,831.48 = 276,692.99 : x - Step 2: Convert to fraction form
287,467.20/393,831.48 = 276,692.99/x - Step 3: Cross multiply
287,467.20x = 393,831.48 × 276,692.99 - Step 4: Simplify right side
287,467.20x = 108,970,407,788.17 - Step 5: Solve for x
x = 108,970,407,788.17/287,467.20 - Step 6: Final answer
x = 379,070.75
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.