Finding the Fourth Proportional to 316,357.90, 436,573.94 and 173,117.97
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Solution
The fourth proportional to 316,357.90, 436,573.94 and 173,117.97 is: 238,902.82
Step by Step Solution
- Step 1: Write the proportion equation
316,357.90 : 436,573.94 = 173,117.97 : x - Step 2: Convert to fraction form
316,357.90/436,573.94 = 173,117.97/x - Step 3: Cross multiply
316,357.90x = 436,573.94 × 173,117.97 - Step 4: Simplify right side
316,357.90x = 75,578,793,382.11 - Step 5: Solve for x
x = 75,578,793,382.11/316,357.90 - Step 6: Final answer
x = 238,902.82
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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.