Finding the Fourth Proportional to 235,514.34, 325,015.92 and 128,090.70
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Solution
The fourth proportional to 235,514.34, 325,015.92 and 128,090.70 is: 176,768.50
Step by Step Solution
- Step 1: Write the proportion equation
235,514.34 : 325,015.92 = 128,090.70 : x - Step 2: Convert to fraction form
235,514.34/325,015.92 = 128,090.70/x - Step 3: Cross multiply
235,514.34x = 325,015.92 × 128,090.70 - Step 4: Simplify right side
235,514.34x = 41,631,516,703.94 - Step 5: Solve for x
x = 41,631,516,703.94/235,514.34 - Step 6: Final answer
x = 176,768.50
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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.