Finding the Fourth Proportional to 316,193.09, 436,341.33 and 172,951.88
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Solution
The fourth proportional to 316,193.09, 436,341.33 and 172,951.88 is: 238,670.79
Step by Step Solution
- Step 1: Write the proportion equation
316,193.09 : 436,341.33 = 172,951.88 : x - Step 2: Convert to fraction form
316,193.09/436,341.33 = 172,951.88/x - Step 3: Cross multiply
316,193.09x = 436,341.33 × 172,951.88 - Step 4: Simplify right side
316,193.09x = 75,466,053,345.20 - Step 5: Solve for x
x = 75,466,053,345.20/316,193.09 - Step 6: Final answer
x = 238,670.79
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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.