Finding the Fourth Proportional to 235,865.92, 325,483.88 and 128,435.62
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Solution
The fourth proportional to 235,865.92, 325,483.88 and 128,435.62 is: 177,235.12
Step by Step Solution
- Step 1: Write the proportion equation
235,865.92 : 325,483.88 = 128,435.62 : x - Step 2: Convert to fraction form
235,865.92/325,483.88 = 128,435.62/x - Step 3: Cross multiply
235,865.92x = 325,483.88 × 128,435.62 - Step 4: Simplify right side
235,865.92x = 41,803,723,927.81 - Step 5: Solve for x
x = 41,803,723,927.81/235,865.92 - Step 6: Final answer
x = 177,235.12
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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.