Finding the Fourth Proportional to 224,138.24, 309,340.32 and 143,578.88
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Solution
The fourth proportional to 224,138.24, 309,340.32 and 143,578.88 is: 198,157.78
Step by Step Solution
- Step 1: Write the proportion equation
224,138.24 : 309,340.32 = 143,578.88 : x - Step 2: Convert to fraction form
224,138.24/309,340.32 = 143,578.88/x - Step 3: Cross multiply
224,138.24x = 309,340.32 × 143,578.88 - Step 4: Simplify right side
224,138.24x = 44,414,736,684.44 - Step 5: Solve for x
x = 44,414,736,684.44/224,138.24 - Step 6: Final answer
x = 198,157.78
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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.