Finding the Fourth Proportional to 187,617.70, 258,912.84 and 101,577.58
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Solution
The fourth proportional to 187,617.70, 258,912.84 and 101,577.58 is: 140,177.28
Step by Step Solution
- Step 1: Write the proportion equation
187,617.70 : 258,912.84 = 101,577.58 : x - Step 2: Convert to fraction form
187,617.70/258,912.84 = 101,577.58/x - Step 3: Cross multiply
187,617.70x = 258,912.84 × 101,577.58 - Step 4: Simplify right side
187,617.70x = 26,299,739,718.13 - Step 5: Solve for x
x = 26,299,739,718.13/187,617.70 - Step 6: Final answer
x = 140,177.28
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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.