Finding the Fourth Proportional to 316,360.94, 436,578.11 and 173,120.99
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Solution
The fourth proportional to 316,360.94, 436,578.11 and 173,120.99 is: 238,906.97
Step by Step Solution
- Step 1: Write the proportion equation
316,360.94 : 436,578.11 = 173,120.99 : x - Step 2: Convert to fraction form
316,360.94/436,578.11 = 173,120.99/x - Step 3: Cross multiply
316,360.94x = 436,578.11 × 173,120.99 - Step 4: Simplify right side
316,360.94x = 75,580,834,615.53 - Step 5: Solve for x
x = 75,580,834,615.53/316,360.94 - Step 6: Final answer
x = 238,906.97
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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.