Finding the Fourth Proportional to 235,709.34, 325,272.66 and 128,277.09
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Solution
The fourth proportional to 235,709.34, 325,272.66 and 128,277.09 is: 177,018.99
Step by Step Solution
- Step 1: Write the proportion equation
235,709.34 : 325,272.66 = 128,277.09 : x - Step 2: Convert to fraction form
235,709.34/325,272.66 = 128,277.09/x - Step 3: Cross multiply
235,709.34x = 325,272.66 × 128,277.09 - Step 4: Simplify right side
235,709.34x = 41,725,030,281.36 - Step 5: Solve for x
x = 41,725,030,281.36/235,709.34 - Step 6: Final answer
x = 177,018.99
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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.