Finding the Fourth Proportional to 356,010.31, 491,197.07 and 202,992.70
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Solution
The fourth proportional to 356,010.31, 491,197.07 and 202,992.70 is: 280,074.52
Step by Step Solution
- Step 1: Write the proportion equation
356,010.31 : 491,197.07 = 202,992.70 : x - Step 2: Convert to fraction form
356,010.31/491,197.07 = 202,992.70/x - Step 3: Cross multiply
356,010.31x = 491,197.07 × 202,992.70 - Step 4: Simplify right side
356,010.31x = 99,709,417,015.40 - Step 5: Solve for x
x = 99,709,417,015.40/356,010.31 - Step 6: Final answer
x = 280,074.52
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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.