Finding the Fourth Proportional to 190,710.09, 263,221.75 and 149,234.94
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Solution
The fourth proportional to 190,710.09, 263,221.75 and 149,234.94 is: 205,976.95
Step by Step Solution
- Step 1: Write the proportion equation
190,710.09 : 263,221.75 = 149,234.94 : x - Step 2: Convert to fraction form
190,710.09/263,221.75 = 149,234.94/x - Step 3: Cross multiply
190,710.09x = 263,221.75 × 149,234.94 - Step 4: Simplify right side
190,710.09x = 39,281,882,067.95 - Step 5: Solve for x
x = 39,281,882,067.95/190,710.09 - Step 6: Final answer
x = 205,976.95
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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.