Finding the Fourth Proportional to 216,643.80, 324,965.70 and 164,155.80
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Solution
The fourth proportional to 216,643.80, 324,965.70 and 164,155.80 is: 246,233.70
Step by Step Solution
- Step 1: Write the proportion equation
216,643.80 : 324,965.70 = 164,155.80 : x - Step 2: Convert to fraction form
216,643.80/324,965.70 = 164,155.80/x - Step 3: Cross multiply
216,643.80x = 324,965.70 × 164,155.80 - Step 4: Simplify right side
216,643.80x = 53,345,004,456.06 - Step 5: Solve for x
x = 53,345,004,456.06/216,643.80 - Step 6: Final answer
x = 246,233.70
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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.