Finding the Fourth Proportional to 351,518.40, 485,104.26 and 215,627.28
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Solution
The fourth proportional to 351,518.40, 485,104.26 and 215,627.28 is: 297,571.09
Step by Step Solution
- Step 1: Write the proportion equation
351,518.40 : 485,104.26 = 215,627.28 : x - Step 2: Convert to fraction form
351,518.40/485,104.26 = 215,627.28/x - Step 3: Cross multiply
351,518.40x = 485,104.26 × 215,627.28 - Step 4: Simplify right side
351,518.40x = 104,601,712,100.21 - Step 5: Solve for x
x = 104,601,712,100.21/351,518.40 - Step 6: Final answer
x = 297,571.09
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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.