Finding the Fourth Proportional to 394,474.20, 591,711.30 and 141,875.70
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Solution
The fourth proportional to 394,474.20, 591,711.30 and 141,875.70 is: 212,813.55
Step by Step Solution
- Step 1: Write the proportion equation
394,474.20 : 591,711.30 = 141,875.70 : x - Step 2: Convert to fraction form
394,474.20/591,711.30 = 141,875.70/x - Step 3: Cross multiply
394,474.20x = 591,711.30 × 141,875.70 - Step 4: Simplify right side
394,474.20x = 83,949,454,885.41 - Step 5: Solve for x
x = 83,949,454,885.41/394,474.20 - Step 6: Final answer
x = 212,813.55
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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.