Finding the Fourth Proportional to 355,270.20, 490,258.26 and 194,130.78
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Solution
The fourth proportional to 355,270.20, 490,258.26 and 194,130.78 is: 267,892.49
Step by Step Solution
- Step 1: Write the proportion equation
355,270.20 : 490,258.26 = 194,130.78 : x - Step 2: Convert to fraction form
355,270.20/490,258.26 = 194,130.78/x - Step 3: Cross multiply
355,270.20x = 490,258.26 × 194,130.78 - Step 4: Simplify right side
355,270.20x = 95,174,218,415.24 - Step 5: Solve for x
x = 95,174,218,415.24/355,270.20 - Step 6: Final answer
x = 267,892.49
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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.