Finding the Fourth Proportional to 213,902.60, 320,853.90 and 202,497.80
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Solution
The fourth proportional to 213,902.60, 320,853.90 and 202,497.80 is: 303,746.70
Step by Step Solution
- Step 1: Write the proportion equation
213,902.60 : 320,853.90 = 202,497.80 : x - Step 2: Convert to fraction form
213,902.60/320,853.90 = 202,497.80/x - Step 3: Cross multiply
213,902.60x = 320,853.90 × 202,497.80 - Step 4: Simplify right side
213,902.60x = 64,972,208,871.42 - Step 5: Solve for x
x = 64,972,208,871.42/213,902.60 - Step 6: Final answer
x = 303,746.70
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1.5x scale
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.