Finding the Fourth Proportional to 209,168.47, 288,652.36 and 113,675.18
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Solution
The fourth proportional to 209,168.47, 288,652.36 and 113,675.18 is: 156,871.68
Step by Step Solution
- Step 1: Write the proportion equation
209,168.47 : 288,652.36 = 113,675.18 : x - Step 2: Convert to fraction form
209,168.47/288,652.36 = 113,675.18/x - Step 3: Cross multiply
209,168.47x = 288,652.36 × 113,675.18 - Step 4: Simplify right side
209,168.47x = 32,812,608,412.05 - Step 5: Solve for x
x = 32,812,608,412.05/209,168.47 - Step 6: Final answer
x = 156,871.68
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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.