Finding the Fourth Proportional to 354,723.44, 489,274.63 and 211,372.88
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Solution
The fourth proportional to 354,723.44, 489,274.63 and 211,372.88 is: 291,549.34
Step by Step Solution
- Step 1: Write the proportion equation
354,723.44 : 489,274.63 = 211,372.88 : x - Step 2: Convert to fraction form
354,723.44/489,274.63 = 211,372.88/x - Step 3: Cross multiply
354,723.44x = 489,274.63 × 211,372.88 - Step 4: Simplify right side
354,723.44x = 103,419,384,679.23 - Step 5: Solve for x
x = 103,419,384,679.23/354,723.44 - Step 6: Final answer
x = 291,549.34
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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.