Finding the Fourth Proportional to 217,035.99, 299,493.05 and 121,529.70
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Solution
The fourth proportional to 217,035.99, 299,493.05 and 121,529.70 is: 167,701.68
Step by Step Solution
- Step 1: Write the proportion equation
217,035.99 : 299,493.05 = 121,529.70 : x - Step 2: Convert to fraction form
217,035.99/299,493.05 = 121,529.70/x - Step 3: Cross multiply
217,035.99x = 299,493.05 × 121,529.70 - Step 4: Simplify right side
217,035.99x = 36,397,299,910.94 - Step 5: Solve for x
x = 36,397,299,910.94/217,035.99 - Step 6: Final answer
x = 167,701.68
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1.5x scale
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.