Finding the Fourth Proportional to 372,273.70, 558,410.55 and 147,687.70
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Solution
The fourth proportional to 372,273.70, 558,410.55 and 147,687.70 is: 221,531.55
Step by Step Solution
- Step 1: Write the proportion equation
372,273.70 : 558,410.55 = 147,687.70 : x - Step 2: Convert to fraction form
372,273.70/558,410.55 = 147,687.70/x - Step 3: Cross multiply
372,273.70x = 558,410.55 × 147,687.70 - Step 4: Simplify right side
372,273.70x = 82,470,369,785.24 - Step 5: Solve for x
x = 82,470,369,785.24/372,273.70 - Step 6: Final answer
x = 221,531.55
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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.