Finding the Fourth Proportional to 218,070.40, 327,202.80 and 99,680.80
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Solution
The fourth proportional to 218,070.40, 327,202.80 and 99,680.80 is: 149,565.63
Step by Step Solution
- Step 1: Write the proportion equation
218,070.40 : 327,202.80 = 99,680.80 : x - Step 2: Convert to fraction form
218,070.40/327,202.80 = 99,680.80/x - Step 3: Cross multiply
218,070.40x = 327,202.80 × 99,680.80 - Step 4: Simplify right side
218,070.40x = 32,615,836,866.24 - Step 5: Solve for x
x = 32,615,836,866.24/218,070.40 - Step 6: Final answer
x = 149,565.63
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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.