Finding the Fourth Proportional to 207,453.43, 286,349.21 and 121,432.55
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Solution
The fourth proportional to 207,453.43, 286,349.21 and 121,432.55 is: 167,614.08
Step by Step Solution
- Step 1: Write the proportion equation
207,453.43 : 286,349.21 = 121,432.55 : x - Step 2: Convert to fraction form
207,453.43/286,349.21 = 121,432.55/x - Step 3: Cross multiply
207,453.43x = 286,349.21 × 121,432.55 - Step 4: Simplify right side
207,453.43x = 34,772,114,153.62 - Step 5: Solve for x
x = 34,772,114,153.62/207,453.43 - Step 6: Final answer
x = 167,614.08
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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.