Finding the Fourth Proportional to 312,259.92, 430,879.68 and 176,277.12
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Solution
The fourth proportional to 312,259.92, 430,879.68 and 176,277.12 is: 243,240.40
Step by Step Solution
- Step 1: Write the proportion equation
312,259.92 : 430,879.68 = 176,277.12 : x - Step 2: Convert to fraction form
312,259.92/430,879.68 = 176,277.12/x - Step 3: Cross multiply
312,259.92x = 430,879.68 × 176,277.12 - Step 4: Simplify right side
312,259.92x = 75,954,229,056.92 - Step 5: Solve for x
x = 75,954,229,056.92/312,259.92 - Step 6: Final answer
x = 243,240.40
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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.