Finding the Fourth Proportional to 207,710.31, 311,113.49 and 136,552.62
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Solution
The fourth proportional to 207,710.31, 311,113.49 and 136,552.62 is: 204,531.79
Step by Step Solution
- Step 1: Write the proportion equation
207,710.31 : 311,113.49 = 136,552.62 : x - Step 2: Convert to fraction form
207,710.31/311,113.49 = 136,552.62/x - Step 3: Cross multiply
207,710.31x = 311,113.49 × 136,552.62 - Step 4: Simplify right side
207,710.31x = 42,483,361,494.08 - Step 5: Solve for x
x = 42,483,361,494.08/207,710.31 - Step 6: Final answer
x = 204,531.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.