Finding the Fourth Proportional to 331,989.40, 497,390.10 and 201,921.40
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Solution
The fourth proportional to 331,989.40, 497,390.10 and 201,921.40 is: 302,520.82
Step by Step Solution
- Step 1: Write the proportion equation
331,989.40 : 497,390.10 = 201,921.40 : x - Step 2: Convert to fraction form
331,989.40/497,390.10 = 201,921.40/x - Step 3: Cross multiply
331,989.40x = 497,390.10 × 201,921.40 - Step 4: Simplify right side
331,989.40x = 100,433,705,338.14 - Step 5: Solve for x
x = 100,433,705,338.14/331,989.40 - Step 6: Final answer
x = 302,520.82
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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.