Finding the Fourth Proportional to 285,247.36, 393,625.70 and 156,160.84
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Solution
The fourth proportional to 285,247.36, 393,625.70 and 156,160.84 is: 215,493.39
Step by Step Solution
- Step 1: Write the proportion equation
285,247.36 : 393,625.70 = 156,160.84 : x - Step 2: Convert to fraction form
285,247.36/393,625.70 = 156,160.84/x - Step 3: Cross multiply
285,247.36x = 393,625.70 × 156,160.84 - Step 4: Simplify right side
285,247.36x = 61,468,919,957.59 - Step 5: Solve for x
x = 61,468,919,957.59/285,247.36 - Step 6: Final answer
x = 215,493.39
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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.