Finding the Fourth Proportional to 236,116.96, 325,831.90 and 128,684.68
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Solution
The fourth proportional to 236,116.96, 325,831.90 and 128,684.68 is: 177,579.68
Step by Step Solution
- Step 1: Write the proportion equation
236,116.96 : 325,831.90 = 128,684.68 : x - Step 2: Convert to fraction form
236,116.96/325,831.90 = 128,684.68/x - Step 3: Cross multiply
236,116.96x = 325,831.90 × 128,684.68 - Step 4: Simplify right side
236,116.96x = 41,929,573,785.29 - Step 5: Solve for x
x = 41,929,573,785.29/236,116.96 - Step 6: Final answer
x = 177,579.68
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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.