Finding the Fourth Proportional to 145,344.36, 217,767.42 and 115,450.81
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Solution
The fourth proportional to 145,344.36, 217,767.42 and 115,450.81 is: 172,978.33
Step by Step Solution
- Step 1: Write the proportion equation
145,344.36 : 217,767.42 = 115,450.81 : x - Step 2: Convert to fraction form
145,344.36/217,767.42 = 115,450.81/x - Step 3: Cross multiply
145,344.36x = 217,767.42 × 115,450.81 - Step 4: Simplify right side
145,344.36x = 25,141,425,030.61 - Step 5: Solve for x
x = 25,141,425,030.61/145,344.36 - Step 6: Final answer
x = 172,978.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.