Finding the Fourth Proportional to 216,677.18, 299,042.70 and 121,203.68
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Solution
The fourth proportional to 216,677.18, 299,042.70 and 121,203.68 is: 167,276.85
Step by Step Solution
- Step 1: Write the proportion equation
216,677.18 : 299,042.70 = 121,203.68 : x - Step 2: Convert to fraction form
216,677.18/299,042.70 = 121,203.68/x - Step 3: Cross multiply
216,677.18x = 299,042.70 × 121,203.68 - Step 4: Simplify right side
216,677.18x = 36,245,075,717.14 - Step 5: Solve for x
x = 36,245,075,717.14/216,677.18 - Step 6: Final answer
x = 167,276.85
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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.