Finding the Fourth Proportional to 316,042.38, 436,178.61 and 180,125.19
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Solution
The fourth proportional to 316,042.38, 436,178.61 and 180,125.19 is: 248,595.63
Step by Step Solution
- Step 1: Write the proportion equation
316,042.38 : 436,178.61 = 180,125.19 : x - Step 2: Convert to fraction form
316,042.38/436,178.61 = 180,125.19/x - Step 3: Cross multiply
316,042.38x = 436,178.61 × 180,125.19 - Step 4: Simplify right side
316,042.38x = 78,566,755,000.19 - Step 5: Solve for x
x = 78,566,755,000.19/316,042.38 - Step 6: Final answer
x = 248,595.63
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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.