Finding the Fourth Proportional to 235,847.20, 325,474.96 and 128,423.12
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Solution
The fourth proportional to 235,847.20, 325,474.96 and 128,423.12 is: 177,227.08
Step by Step Solution
- Step 1: Write the proportion equation
235,847.20 : 325,474.96 = 128,423.12 : x - Step 2: Convert to fraction form
235,847.20/325,474.96 = 128,423.12/x - Step 3: Cross multiply
235,847.20x = 325,474.96 × 128,423.12 - Step 4: Simplify right side
235,847.20x = 41,798,509,845.08 - Step 5: Solve for x
x = 41,798,509,845.08/235,847.20 - Step 6: Final answer
x = 177,227.08
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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.