Finding the Fourth Proportional to 231,765.06, 319,809.36 and 129,776.34
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Solution
The fourth proportional to 231,765.06, 319,809.36 and 129,776.34 is: 179,076.55
Step by Step Solution
- Step 1: Write the proportion equation
231,765.06 : 319,809.36 = 129,776.34 : x - Step 2: Convert to fraction form
231,765.06/319,809.36 = 129,776.34/x - Step 3: Cross multiply
231,765.06x = 319,809.36 × 129,776.34 - Step 4: Simplify right side
231,765.06x = 41,503,688,238.54 - Step 5: Solve for x
x = 41,503,688,238.54/231,765.06 - Step 6: Final answer
x = 179,076.55
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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.