Finding the Fourth Proportional to 218,378.64, 325,608.35 and 214,392.84
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Solution
The fourth proportional to 218,378.64, 325,608.35 and 214,392.84 is: 319,665.42
Step by Step Solution
- Step 1: Write the proportion equation
218,378.64 : 325,608.35 = 214,392.84 : x - Step 2: Convert to fraction form
218,378.64/325,608.35 = 214,392.84/x - Step 3: Cross multiply
218,378.64x = 325,608.35 × 214,392.84 - Step 4: Simplify right side
218,378.64x = 69,808,098,884.21 - Step 5: Solve for x
x = 69,808,098,884.21/218,378.64 - Step 6: Final answer
x = 319,665.42
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.