Finding the Fourth Proportional to 312,905.35, 431,817.87 and 176,959.63
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Solution
The fourth proportional to 312,905.35, 431,817.87 and 176,959.63 is: 244,209.08
Step by Step Solution
- Step 1: Write the proportion equation
312,905.35 : 431,817.87 = 176,959.63 : x - Step 2: Convert to fraction form
312,905.35/431,817.87 = 176,959.63/x - Step 3: Cross multiply
312,905.35x = 431,817.87 × 176,959.63 - Step 4: Simplify right side
312,905.35x = 76,414,329,276.98 - Step 5: Solve for x
x = 76,414,329,276.98/312,905.35 - Step 6: Final answer
x = 244,209.08
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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.