Finding the Fourth Proportional to 235,786.84, 325,385.88 and 128,356.84
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Solution
The fourth proportional to 235,786.84, 325,385.88 and 128,356.84 is: 177,132.47
Step by Step Solution
- Step 1: Write the proportion equation
235,786.84 : 325,385.88 = 128,356.84 : x - Step 2: Convert to fraction form
235,786.84/325,385.88 = 128,356.84/x - Step 3: Cross multiply
235,786.84x = 325,385.88 × 128,356.84 - Step 4: Simplify right side
235,786.84x = 41,765,503,888.25 - Step 5: Solve for x
x = 41,765,503,888.25/235,786.84 - Step 6: Final answer
x = 177,132.47
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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.