Finding the Fourth Proportional to 402,445.20, 603,740.70 and 202,261.80
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Solution
The fourth proportional to 402,445.20, 603,740.70 and 202,261.80 is: 303,429.34
Step by Step Solution
- Step 1: Write the proportion equation
402,445.20 : 603,740.70 = 202,261.80 : x - Step 2: Convert to fraction form
402,445.20/603,740.70 = 202,261.80/x - Step 3: Cross multiply
402,445.20x = 603,740.70 × 202,261.80 - Step 4: Simplify right side
402,445.20x = 122,113,680,715.26 - Step 5: Solve for x
x = 122,113,680,715.26/402,445.20 - Step 6: Final answer
x = 303,429.34
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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.