Finding the Fourth Proportional to 235,679.76, 325,244.97 and 128,256.75
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Solution
The fourth proportional to 235,679.76, 325,244.97 and 128,256.75 is: 176,998.07
Step by Step Solution
- Step 1: Write the proportion equation
235,679.76 : 325,244.97 = 128,256.75 : x - Step 2: Convert to fraction form
235,679.76/325,244.97 = 128,256.75/x - Step 3: Cross multiply
235,679.76x = 325,244.97 × 128,256.75 - Step 4: Simplify right side
235,679.76x = 41,714,862,806.05 - Step 5: Solve for x
x = 41,714,862,806.05/235,679.76 - Step 6: Final answer
x = 176,998.07
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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.