Finding the Fourth Proportional to 302,440.20, 453,660.30 and 207,961.80
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Solution
The fourth proportional to 302,440.20, 453,660.30 and 207,961.80 is: 311,942.70
Step by Step Solution
- Step 1: Write the proportion equation
302,440.20 : 453,660.30 = 207,961.80 : x - Step 2: Convert to fraction form
302,440.20/453,660.30 = 207,961.80/x - Step 3: Cross multiply
302,440.20x = 453,660.30 × 207,961.80 - Step 4: Simplify right side
302,440.20x = 94,344,012,576.54 - Step 5: Solve for x
x = 94,344,012,576.54/302,440.20 - Step 6: Final answer
x = 311,942.70
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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.