Finding the Fourth Proportional to 216,643.20, 324,964.80 and 182,428.80
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Solution
The fourth proportional to 216,643.20, 324,964.80 and 182,428.80 is: 273,643.20
Step by Step Solution
- Step 1: Write the proportion equation
216,643.20 : 324,964.80 = 182,428.80 : x - Step 2: Convert to fraction form
216,643.20/324,964.80 = 182,428.80/x - Step 3: Cross multiply
216,643.20x = 324,964.80 × 182,428.80 - Step 4: Simplify right side
216,643.20x = 59,282,938,506.24 - Step 5: Solve for x
x = 59,282,938,506.24/216,643.20 - Step 6: Final answer
x = 273,643.20
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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.