Finding the Fourth Proportional to 187,206.78, 258,344.96 and 106,634.28
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Solution
The fourth proportional to 187,206.78, 258,344.96 and 106,634.28 is: 147,155.08
Step by Step Solution
- Step 1: Write the proportion equation
187,206.78 : 258,344.96 = 106,634.28 : x - Step 2: Convert to fraction form
187,206.78/258,344.96 = 106,634.28/x - Step 3: Cross multiply
187,206.78x = 258,344.96 × 106,634.28 - Step 4: Simplify right side
187,206.78x = 27,548,428,801.23 - Step 5: Solve for x
x = 27,548,428,801.23/187,206.78 - Step 6: Final answer
x = 147,155.08
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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.