Finding the Fourth Proportional to 229,768.40, 344,911.80 and 136,326.80
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Solution
The fourth proportional to 229,768.40, 344,911.80 and 136,326.80 is: 204,643.99
Step by Step Solution
- Step 1: Write the proportion equation
229,768.40 : 344,911.80 = 136,326.80 : x - Step 2: Convert to fraction form
229,768.40/344,911.80 = 136,326.80/x - Step 3: Cross multiply
229,768.40x = 344,911.80 × 136,326.80 - Step 4: Simplify right side
229,768.40x = 47,020,721,976.24 - Step 5: Solve for x
x = 47,020,721,976.24/229,768.40 - Step 6: Final answer
x = 204,643.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.