Finding the Fourth Proportional to 214,981.80, 322,472.70 and 83,653.80
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Solution
The fourth proportional to 214,981.80, 322,472.70 and 83,653.80 is: 125,480.70
Step by Step Solution
- Step 1: Write the proportion equation
214,981.80 : 322,472.70 = 83,653.80 : x - Step 2: Convert to fraction form
214,981.80/322,472.70 = 83,653.80/x - Step 3: Cross multiply
214,981.80x = 322,472.70 × 83,653.80 - Step 4: Simplify right side
214,981.80x = 26,976,066,751.26 - Step 5: Solve for x
x = 26,976,066,751.26/214,981.80 - Step 6: Final answer
x = 125,480.70
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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.