Finding the Fourth Proportional to 305,416.63, 421,460.67 and 169,449.13
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Solution
The fourth proportional to 305,416.63, 421,460.67 and 169,449.13 is: 233,831.88
Step by Step Solution
- Step 1: Write the proportion equation
305,416.63 : 421,460.67 = 169,449.13 : x - Step 2: Convert to fraction form
305,416.63/421,460.67 = 169,449.13/x - Step 3: Cross multiply
305,416.63x = 421,460.67 × 169,449.13 - Step 4: Simplify right side
305,416.63x = 71,416,143,860.72 - Step 5: Solve for x
x = 71,416,143,860.72/305,416.63 - Step 6: Final answer
x = 233,831.88
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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.