Finding the Fourth Proportional to 279,879.08, 386,295.41 and 177,884.69
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Solution
The fourth proportional to 279,879.08, 386,295.41 and 177,884.69 is: 245,520.45
Step by Step Solution
- Step 1: Write the proportion equation
279,879.08 : 386,295.41 = 177,884.69 : x - Step 2: Convert to fraction form
279,879.08/386,295.41 = 177,884.69/x - Step 3: Cross multiply
279,879.08x = 386,295.41 × 177,884.69 - Step 4: Simplify right side
279,879.08x = 68,716,037,769.51 - Step 5: Solve for x
x = 68,716,037,769.51/279,879.08 - Step 6: Final answer
x = 245,520.45
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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.