Finding the Fourth Proportional to 316,252.62, 436,168.80 and 225,579.60
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Solution
The fourth proportional to 316,252.62, 436,168.80 and 225,579.60 is: 311,114.52
Step by Step Solution
- Step 1: Write the proportion equation
316,252.62 : 436,168.80 = 225,579.60 : x - Step 2: Convert to fraction form
316,252.62/436,168.80 = 225,579.60/x - Step 3: Cross multiply
316,252.62x = 436,168.80 × 225,579.60 - Step 4: Simplify right side
316,252.62x = 98,390,783,436.48 - Step 5: Solve for x
x = 98,390,783,436.48/316,252.62 - Step 6: Final answer
x = 311,114.52
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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.