Finding the Fourth Proportional to 638,577.92, 957,940.99 and 212,151.80
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Solution
The fourth proportional to 638,577.92, 957,940.99 and 212,151.80 is: 318,252.32
Step by Step Solution
- Step 1: Write the proportion equation
638,577.92 : 957,940.99 = 212,151.80 : x - Step 2: Convert to fraction form
638,577.92/957,940.99 = 212,151.80/x - Step 3: Cross multiply
638,577.92x = 957,940.99 × 212,151.80 - Step 4: Simplify right side
638,577.92x = 203,228,900,532.58 - Step 5: Solve for x
x = 203,228,900,532.58/638,577.92 - Step 6: Final answer
x = 318,252.32
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1.5x scale
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.