Finding the Fourth Proportional to 194,964.80, 292,447.20 and 121,236.80
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Solution
The fourth proportional to 194,964.80, 292,447.20 and 121,236.80 is: 181,855.20
Step by Step Solution
- Step 1: Write the proportion equation
194,964.80 : 292,447.20 = 121,236.80 : x - Step 2: Convert to fraction form
194,964.80/292,447.20 = 121,236.80/x - Step 3: Cross multiply
194,964.80x = 292,447.20 × 121,236.80 - Step 4: Simplify right side
194,964.80x = 35,455,362,696.96 - Step 5: Solve for x
x = 35,455,362,696.96/194,964.80 - Step 6: Final answer
x = 181,855.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.