Finding the Fourth Proportional to 305,908.08, 422,158.68 and 171,776.88
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Solution
The fourth proportional to 305,908.08, 422,158.68 and 171,776.88 is: 237,055.20
Step by Step Solution
- Step 1: Write the proportion equation
305,908.08 : 422,158.68 = 171,776.88 : x - Step 2: Convert to fraction form
305,908.08/422,158.68 = 171,776.88/x - Step 3: Cross multiply
305,908.08x = 422,158.68 × 171,776.88 - Step 4: Simplify right side
305,908.08x = 72,517,100,915.32 - Step 5: Solve for x
x = 72,517,100,915.32/305,908.08 - Step 6: Final answer
x = 237,055.20
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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.