Finding the Fourth Proportional to 309,550.41, 427,270.28 and 202,137.12
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Solution
The fourth proportional to 309,550.41, 427,270.28 and 202,137.12 is: 279,008.46
Step by Step Solution
- Step 1: Write the proportion equation
309,550.41 : 427,270.28 = 202,137.12 : x - Step 2: Convert to fraction form
309,550.41/427,270.28 = 202,137.12/x - Step 3: Cross multiply
309,550.41x = 427,270.28 × 202,137.12 - Step 4: Simplify right side
309,550.41x = 86,367,182,850.11 - Step 5: Solve for x
x = 86,367,182,850.11/309,550.41 - Step 6: Final answer
x = 279,008.46
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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.