Finding the Fourth Proportional to 316,352.91, 436,566.99 and 173,112.96
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Solution
The fourth proportional to 316,352.91, 436,566.99 and 173,112.96 is: 238,895.87
Step by Step Solution
- Step 1: Write the proportion equation
316,352.91 : 436,566.99 = 173,112.96 : x - Step 2: Convert to fraction form
316,352.91/436,566.99 = 173,112.96/x - Step 3: Cross multiply
316,352.91x = 436,566.99 × 173,112.96 - Step 4: Simplify right side
316,352.91x = 75,575,403,877.19 - Step 5: Solve for x
x = 75,575,403,877.19/316,352.91 - Step 6: Final answer
x = 238,895.87
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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.