Finding the Fourth Proportional to 211,983.68, 292,520.76 and 121,341.44
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Solution
The fourth proportional to 211,983.68, 292,520.76 and 121,341.44 is: 167,441.62
Step by Step Solution
- Step 1: Write the proportion equation
211,983.68 : 292,520.76 = 121,341.44 : x - Step 2: Convert to fraction form
211,983.68/292,520.76 = 121,341.44/x - Step 3: Cross multiply
211,983.68x = 292,520.76 × 121,341.44 - Step 4: Simplify right side
211,983.68x = 35,494,890,248.29 - Step 5: Solve for x
x = 35,494,890,248.29/211,983.68 - Step 6: Final answer
x = 167,441.62
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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.