Finding the Fourth Proportional to 305,246.70, 420,754.97 and 240,611.13
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Solution
The fourth proportional to 305,246.70, 420,754.97 and 240,611.13 is: 331,660.68
Step by Step Solution
- Step 1: Write the proportion equation
305,246.70 : 420,754.97 = 240,611.13 : x - Step 2: Convert to fraction form
305,246.70/420,754.97 = 240,611.13/x - Step 3: Cross multiply
305,246.70x = 420,754.97 × 240,611.13 - Step 4: Simplify right side
305,246.70x = 101,238,327,581.76 - Step 5: Solve for x
x = 101,238,327,581.76/305,246.70 - Step 6: Final answer
x = 331,660.68
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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.