Finding the Fourth Proportional to 352,821.60, 486,879.84 and 209,577.84
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Solution
The fourth proportional to 352,821.60, 486,879.84 and 209,577.84 is: 289,209.12
Step by Step Solution
- Step 1: Write the proportion equation
352,821.60 : 486,879.84 = 209,577.84 : x - Step 2: Convert to fraction form
352,821.60/486,879.84 = 209,577.84/x - Step 3: Cross multiply
352,821.60x = 486,879.84 × 209,577.84 - Step 4: Simplify right side
352,821.60x = 102,039,225,206.75 - Step 5: Solve for x
x = 102,039,225,206.75/352,821.60 - Step 6: Final answer
x = 289,209.12
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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.