Finding the Fourth Proportional to 351,665.28, 485,298.36 and 206,442.63
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Solution
The fourth proportional to 351,665.28, 485,298.36 and 206,442.63 is: 284,890.99
Step by Step Solution
- Step 1: Write the proportion equation
351,665.28 : 485,298.36 = 206,442.63 : x - Step 2: Convert to fraction form
351,665.28/485,298.36 = 206,442.63/x - Step 3: Cross multiply
351,665.28x = 485,298.36 × 206,442.63 - Step 4: Simplify right side
351,665.28x = 100,186,269,773.09 - Step 5: Solve for x
x = 100,186,269,773.09/351,665.28 - Step 6: Final answer
x = 284,890.99
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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.