Finding the Fourth Proportional to 312,433.92, 431,155.44 and 176,468.13
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Solution
The fourth proportional to 312,433.92, 431,155.44 and 176,468.13 is: 243,524.12
Step by Step Solution
- Step 1: Write the proportion equation
312,433.92 : 431,155.44 = 176,468.13 : x - Step 2: Convert to fraction form
312,433.92/431,155.44 = 176,468.13/x - Step 3: Cross multiply
312,433.92x = 431,155.44 × 176,468.13 - Step 4: Simplify right side
312,433.92x = 76,085,194,236.13 - Step 5: Solve for x
x = 76,085,194,236.13/312,433.92 - Step 6: Final answer
x = 243,524.12
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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.