Finding the Fourth Proportional to 217,291.01, 299,861.19 and 121,797.68
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Solution
The fourth proportional to 217,291.01, 299,861.19 and 121,797.68 is: 168,080.57
Step by Step Solution
- Step 1: Write the proportion equation
217,291.01 : 299,861.19 = 121,797.68 : x - Step 2: Convert to fraction form
217,291.01/299,861.19 = 121,797.68/x - Step 3: Cross multiply
217,291.01x = 299,861.19 × 121,797.68 - Step 4: Simplify right side
217,291.01x = 36,522,395,764.73 - Step 5: Solve for x
x = 36,522,395,764.73/217,291.01 - Step 6: Final answer
x = 168,080.57
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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.