Finding the Fourth Proportional to 318,310.88, 477,497.50 and 115,961.99
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Solution
The fourth proportional to 318,310.88, 477,497.50 and 115,961.99 is: 173,954.34
Step by Step Solution
- Step 1: Write the proportion equation
318,310.88 : 477,497.50 = 115,961.99 : x - Step 2: Convert to fraction form
318,310.88/477,497.50 = 115,961.99/x - Step 3: Cross multiply
318,310.88x = 477,497.50 × 115,961.99 - Step 4: Simplify right side
318,310.88x = 55,371,557,642.63 - Step 5: Solve for x
x = 55,371,557,642.63/318,310.88 - Step 6: Final answer
x = 173,954.34
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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.