Finding the Fourth Proportional to 235,798.06, 325,405.48 and 128,371.18
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Solution
The fourth proportional to 235,798.06, 325,405.48 and 128,371.18 is: 177,154.49
Step by Step Solution
- Step 1: Write the proportion equation
235,798.06 : 325,405.48 = 128,371.18 : x - Step 2: Convert to fraction form
235,798.06/325,405.48 = 128,371.18/x - Step 3: Cross multiply
235,798.06x = 325,405.48 × 128,371.18 - Step 4: Simplify right side
235,798.06x = 41,772,685,446.07 - Step 5: Solve for x
x = 41,772,685,446.07/235,798.06 - Step 6: Final answer
x = 177,154.49
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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.