Finding the Fourth Proportional to 355,192.14, 490,174.76 and 212,035.26
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Solution
The fourth proportional to 355,192.14, 490,174.76 and 212,035.26 is: 292,614.39
Step by Step Solution
- Step 1: Write the proportion equation
355,192.14 : 490,174.76 = 212,035.26 : x - Step 2: Convert to fraction form
355,192.14/490,174.76 = 212,035.26/x - Step 3: Cross multiply
355,192.14x = 490,174.76 × 212,035.26 - Step 4: Simplify right side
355,192.14x = 103,934,332,682.04 - Step 5: Solve for x
x = 103,934,332,682.04/355,192.14 - Step 6: Final answer
x = 292,614.39
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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.