Finding the Fourth Proportional to 381,951.66, 527,090.68 and 209,871.44
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Solution
The fourth proportional to 381,951.66, 527,090.68 and 209,871.44 is: 289,621.15
Step by Step Solution
- Step 1: Write the proportion equation
381,951.66 : 527,090.68 = 209,871.44 : x - Step 2: Convert to fraction form
381,951.66/527,090.68 = 209,871.44/x - Step 3: Cross multiply
381,951.66x = 527,090.68 × 209,871.44 - Step 4: Simplify right side
381,951.66x = 110,621,278,445.13 - Step 5: Solve for x
x = 110,621,278,445.13/381,951.66 - Step 6: Final answer
x = 289,621.15
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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.