Finding the Fourth Proportional to 145,344.74, 217,767.98 and 115,451.18
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Solution
The fourth proportional to 145,344.74, 217,767.98 and 115,451.18 is: 172,978.88
Step by Step Solution
- Step 1: Write the proportion equation
145,344.74 : 217,767.98 = 115,451.18 : x - Step 2: Convert to fraction form
145,344.74/217,767.98 = 115,451.18/x - Step 3: Cross multiply
145,344.74x = 217,767.98 × 115,451.18 - Step 4: Simplify right side
145,344.74x = 25,141,570,224.38 - Step 5: Solve for x
x = 25,141,570,224.38/145,344.74 - Step 6: Final answer
x = 172,978.88
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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.