Finding the Fourth Proportional to 315,119.43, 434,866.17 and 171,882.55
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Solution
The fourth proportional to 315,119.43, 434,866.17 and 171,882.55 is: 237,198.66
Step by Step Solution
- Step 1: Write the proportion equation
315,119.43 : 434,866.17 = 171,882.55 : x - Step 2: Convert to fraction form
315,119.43/434,866.17 = 171,882.55/x - Step 3: Cross multiply
315,119.43x = 434,866.17 × 171,882.55 - Step 4: Simplify right side
315,119.43x = 74,745,905,348.92 - Step 5: Solve for x
x = 74,745,905,348.92/315,119.43 - Step 6: Final answer
x = 237,198.66
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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.