Finding the Fourth Proportional to 217,134.96, 299,626.20 and 121,645.68
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Solution
The fourth proportional to 217,134.96, 299,626.20 and 121,645.68 is: 167,859.81
Step by Step Solution
- Step 1: Write the proportion equation
217,134.96 : 299,626.20 = 121,645.68 : x - Step 2: Convert to fraction form
217,134.96/299,626.20 = 121,645.68/x - Step 3: Cross multiply
217,134.96x = 299,626.20 × 121,645.68 - Step 4: Simplify right side
217,134.96x = 36,448,232,844.82 - Step 5: Solve for x
x = 36,448,232,844.82/217,134.96 - Step 6: Final answer
x = 167,859.81
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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.