Finding the Fourth Proportional to 305,378.04, 421,422.77 and 169,414.68
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Solution
The fourth proportional to 305,378.04, 421,422.77 and 169,414.68 is: 233,792.85
Step by Step Solution
- Step 1: Write the proportion equation
305,378.04 : 421,422.77 = 169,414.68 : x - Step 2: Convert to fraction form
305,378.04/421,422.77 = 169,414.68/x - Step 3: Cross multiply
305,378.04x = 421,422.77 × 169,414.68 - Step 4: Simplify right side
305,378.04x = 71,395,203,724.26 - Step 5: Solve for x
x = 71,395,203,724.26/305,378.04 - Step 6: Final answer
x = 233,792.85
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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.