Finding the Fourth Proportional to 394,462.20, 591,693.30 and 141,863.70
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Solution
The fourth proportional to 394,462.20, 591,693.30 and 141,863.70 is: 212,795.55
Step by Step Solution
- Step 1: Write the proportion equation
394,462.20 : 591,693.30 = 141,863.70 : x - Step 2: Convert to fraction form
394,462.20/591,693.30 = 141,863.70/x - Step 3: Cross multiply
394,462.20x = 591,693.30 × 141,863.70 - Step 4: Simplify right side
394,462.20x = 83,939,800,803.21 - Step 5: Solve for x
x = 83,939,800,803.21/394,462.20 - Step 6: Final answer
x = 212,795.55
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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.