Finding the Fourth Proportional to 305,037.09, 420,950.12 and 170,901.09
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Solution
The fourth proportional to 305,037.09, 420,950.12 and 170,901.09 is: 235,842.91
Step by Step Solution
- Step 1: Write the proportion equation
305,037.09 : 420,950.12 = 170,901.09 : x - Step 2: Convert to fraction form
305,037.09/420,950.12 = 170,901.09/x - Step 3: Cross multiply
305,037.09x = 420,950.12 × 170,901.09 - Step 4: Simplify right side
305,037.09x = 71,940,833,489.13 - Step 5: Solve for x
x = 71,940,833,489.13/305,037.09 - Step 6: Final answer
x = 235,842.91
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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.