Finding the Fourth Proportional to 215,984.07, 298,057.12 and 120,490.84
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Solution
The fourth proportional to 215,984.07, 298,057.12 and 120,490.84 is: 166,276.86
Step by Step Solution
- Step 1: Write the proportion equation
215,984.07 : 298,057.12 = 120,490.84 : x - Step 2: Convert to fraction form
215,984.07/298,057.12 = 120,490.84/x - Step 3: Cross multiply
215,984.07x = 298,057.12 × 120,490.84 - Step 4: Simplify right side
215,984.07x = 35,913,152,828.13 - Step 5: Solve for x
x = 35,913,152,828.13/215,984.07 - Step 6: Final answer
x = 166,276.86
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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.