Finding the Fourth Proportional to 212,553.99, 317,165.76 and 190,213.74
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Solution
The fourth proportional to 212,553.99, 317,165.76 and 190,213.74 is: 283,830.41
Step by Step Solution
- Step 1: Write the proportion equation
212,553.99 : 317,165.76 = 190,213.74 : x - Step 2: Convert to fraction form
212,553.99/317,165.76 = 190,213.74/x - Step 3: Cross multiply
212,553.99x = 317,165.76 × 190,213.74 - Step 4: Simplify right side
212,553.99x = 60,329,285,409.54 - Step 5: Solve for x
x = 60,329,285,409.54/212,553.99 - Step 6: Final answer
x = 283,830.41
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.