Finding the Fourth Proportional to 288,231.24, 397,944.33 and 186,412.80
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Solution
The fourth proportional to 288,231.24, 397,944.33 and 186,412.80 is: 257,369.45
Step by Step Solution
- Step 1: Write the proportion equation
288,231.24 : 397,944.33 = 186,412.80 : x - Step 2: Convert to fraction form
288,231.24/397,944.33 = 186,412.80/x - Step 3: Cross multiply
288,231.24x = 397,944.33 × 186,412.80 - Step 4: Simplify right side
288,231.24x = 74,181,916,799.42 - Step 5: Solve for x
x = 74,181,916,799.42/288,231.24 - Step 6: Final answer
x = 257,369.45
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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.