Finding the Fourth Proportional to 187,385.58, 258,528.69 and 106,755.67
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Solution
The fourth proportional to 187,385.58, 258,528.69 and 106,755.67 is: 147,286.70
Step by Step Solution
- Step 1: Write the proportion equation
187,385.58 : 258,528.69 = 106,755.67 : x - Step 2: Convert to fraction form
187,385.58/258,528.69 = 106,755.67/x - Step 3: Cross multiply
187,385.58x = 258,528.69 × 106,755.67 - Step 4: Simplify right side
187,385.58x = 27,599,403,538.08 - Step 5: Solve for x
x = 27,599,403,538.08/187,385.58 - Step 6: Final answer
x = 147,286.70
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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.