Finding the Fourth Proportional to 363,902.70, 545,854.05 and 330,660.30
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Solution
The fourth proportional to 363,902.70, 545,854.05 and 330,660.30 is: 495,990.45
Step by Step Solution
- Step 1: Write the proportion equation
363,902.70 : 545,854.05 = 330,660.30 : x - Step 2: Convert to fraction form
363,902.70/545,854.05 = 330,660.30/x - Step 3: Cross multiply
363,902.70x = 545,854.05 × 330,660.30 - Step 4: Simplify right side
363,902.70x = 180,492,263,929.22 - Step 5: Solve for x
x = 180,492,263,929.22/363,902.70 - Step 6: Final answer
x = 495,990.45
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1.5x scale
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.