Finding the Fourth Proportional to 326,362.70, 489,207.26 and 136,933.08
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Solution
The fourth proportional to 326,362.70, 489,207.26 and 136,933.08 is: 205,258.31
Step by Step Solution
- Step 1: Write the proportion equation
326,362.70 : 489,207.26 = 136,933.08 : x - Step 2: Convert to fraction form
326,362.70/489,207.26 = 136,933.08/x - Step 3: Cross multiply
326,362.70x = 489,207.26 × 136,933.08 - Step 4: Simplify right side
326,362.70x = 66,988,656,870.16 - Step 5: Solve for x
x = 66,988,656,870.16/326,362.70 - Step 6: Final answer
x = 205,258.31
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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.