Finding the Fourth Proportional to 427,871.08, 641,821.50 and 203,115.73
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Solution
The fourth proportional to 427,871.08, 641,821.50 and 203,115.73 is: 304,680.66
Step by Step Solution
- Step 1: Write the proportion equation
427,871.08 : 641,821.50 = 203,115.73 : x - Step 2: Convert to fraction form
427,871.08/641,821.50 = 203,115.73/x - Step 3: Cross multiply
427,871.08x = 641,821.50 × 203,115.73 - Step 4: Simplify right side
427,871.08x = 130,364,042,502.20 - Step 5: Solve for x
x = 130,364,042,502.20/427,871.08 - Step 6: Final answer
x = 304,680.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.