Finding the Fourth Proportional to 235,684.76, 325,251.88 and 128,261.76
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Solution
The fourth proportional to 235,684.76, 325,251.88 and 128,261.76 is: 177,004.99
Step by Step Solution
- Step 1: Write the proportion equation
235,684.76 : 325,251.88 = 128,261.76 : x - Step 2: Convert to fraction form
235,684.76/325,251.88 = 128,261.76/x - Step 3: Cross multiply
235,684.76x = 325,251.88 × 128,261.76 - Step 4: Simplify right side
235,684.76x = 41,717,378,572.11 - Step 5: Solve for x
x = 41,717,378,572.11/235,684.76 - Step 6: Final answer
x = 177,004.99
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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.