Finding the Fourth Proportional to 327,970.92, 491,642.64 and 128,224.92
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Solution
The fourth proportional to 327,970.92, 491,642.64 and 128,224.92 is: 192,214.72
Step by Step Solution
- Step 1: Write the proportion equation
327,970.92 : 491,642.64 = 128,224.92 : x - Step 2: Convert to fraction form
327,970.92/491,642.64 = 128,224.92/x - Step 3: Cross multiply
327,970.92x = 491,642.64 × 128,224.92 - Step 4: Simplify right side
327,970.92x = 63,040,838,182.59 - Step 5: Solve for x
x = 63,040,838,182.59/327,970.92 - Step 6: Final answer
x = 192,214.72
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1.5x scale
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.