Finding the Fourth Proportional to 402,427.20, 603,713.70 and 202,243.80
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Solution
The fourth proportional to 402,427.20, 603,713.70 and 202,243.80 is: 303,402.34
Step by Step Solution
- Step 1: Write the proportion equation
402,427.20 : 603,713.70 = 202,243.80 : x - Step 2: Convert to fraction form
402,427.20/603,713.70 = 202,243.80/x - Step 3: Cross multiply
402,427.20x = 603,713.70 × 202,243.80 - Step 4: Simplify right side
402,427.20x = 122,097,352,800.06 - Step 5: Solve for x
x = 122,097,352,800.06/402,427.20 - Step 6: Final answer
x = 303,402.34
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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.