Finding the Fourth Proportional to 209,070.97, 288,518.28 and 113,577.74
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Solution
The fourth proportional to 209,070.97, 288,518.28 and 113,577.74 is: 156,737.47
Step by Step Solution
- Step 1: Write the proportion equation
209,070.97 : 288,518.28 = 113,577.74 : x - Step 2: Convert to fraction form
209,070.97/288,518.28 = 113,577.74/x - Step 3: Cross multiply
209,070.97x = 288,518.28 × 113,577.74 - Step 4: Simplify right side
209,070.97x = 32,769,253,623.20 - Step 5: Solve for x
x = 32,769,253,623.20/209,070.97 - Step 6: Final answer
x = 156,737.47
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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.