Finding the Fourth Proportional to 209,302.80, 313,954.20 and 84,643.80
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Solution
The fourth proportional to 209,302.80, 313,954.20 and 84,643.80 is: 126,965.70
Step by Step Solution
- Step 1: Write the proportion equation
209,302.80 : 313,954.20 = 84,643.80 : x - Step 2: Convert to fraction form
209,302.80/313,954.20 = 84,643.80/x - Step 3: Cross multiply
209,302.80x = 313,954.20 × 84,643.80 - Step 4: Simplify right side
209,302.80x = 26,574,276,513.96 - Step 5: Solve for x
x = 26,574,276,513.96/209,302.80 - Step 6: Final answer
x = 126,965.70
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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.