Finding the Fourth Proportional to 427,203.86, 640,674.57 and 202,497.82
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Solution
The fourth proportional to 427,203.86, 640,674.57 and 202,497.82 is: 303,684.53
Step by Step Solution
- Step 1: Write the proportion equation
427,203.86 : 640,674.57 = 202,497.82 : x - Step 2: Convert to fraction form
427,203.86/640,674.57 = 202,497.82/x - Step 3: Cross multiply
427,203.86x = 640,674.57 × 202,497.82 - Step 4: Simplify right side
427,203.86x = 129,735,202,152.75 - Step 5: Solve for x
x = 129,735,202,152.75/427,203.86 - Step 6: Final answer
x = 303,684.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.