Finding the Fourth Proportional to 306,217.24, 422,579.36 and 170,246.86
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Solution
The fourth proportional to 306,217.24, 422,579.36 and 170,246.86 is: 234,940.43
Step by Step Solution
- Step 1: Write the proportion equation
306,217.24 : 422,579.36 = 170,246.86 : x - Step 2: Convert to fraction form
306,217.24/422,579.36 = 170,246.86/x - Step 3: Cross multiply
306,217.24x = 422,579.36 × 170,246.86 - Step 4: Simplify right side
306,217.24x = 71,942,809,140.81 - Step 5: Solve for x
x = 71,942,809,140.81/306,217.24 - Step 6: Final answer
x = 234,940.43
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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.