Finding the Fourth Proportional to 216,688.67, 299,046.02 and 121,226.12
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Solution
The fourth proportional to 216,688.67, 299,046.02 and 121,226.12 is: 167,300.80
Step by Step Solution
- Step 1: Write the proportion equation
216,688.67 : 299,046.02 = 121,226.12 : x - Step 2: Convert to fraction form
216,688.67/299,046.02 = 121,226.12/x - Step 3: Cross multiply
216,688.67x = 299,046.02 × 121,226.12 - Step 4: Simplify right side
216,688.67x = 36,252,186,604.68 - Step 5: Solve for x
x = 36,252,186,604.68/216,688.67 - Step 6: Final answer
x = 167,300.80
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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.