Finding the Fourth Proportional to 289,108.09, 398,586.90 and 237,235.18
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Solution
The fourth proportional to 289,108.09, 398,586.90 and 237,235.18 is: 327,070.88
Step by Step Solution
- Step 1: Write the proportion equation
289,108.09 : 398,586.90 = 237,235.18 : x - Step 2: Convert to fraction form
289,108.09/398,586.90 = 237,235.18/x - Step 3: Cross multiply
289,108.09x = 398,586.90 × 237,235.18 - Step 4: Simplify right side
289,108.09x = 94,558,834,940.43 - Step 5: Solve for x
x = 94,558,834,940.43/289,108.09 - Step 6: Final answer
x = 327,070.88
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1.5x scale
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.