Finding the Fourth Proportional to 402,319.20, 603,551.70 and 202,135.80
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Solution
The fourth proportional to 402,319.20, 603,551.70 and 202,135.80 is: 303,240.33
Step by Step Solution
- Step 1: Write the proportion equation
402,319.20 : 603,551.70 = 202,135.80 : x - Step 2: Convert to fraction form
402,319.20/603,551.70 = 202,135.80/x - Step 3: Cross multiply
402,319.20x = 603,551.70 × 202,135.80 - Step 4: Simplify right side
402,319.20x = 121,999,405,720.86 - Step 5: Solve for x
x = 121,999,405,720.86/402,319.20 - Step 6: Final answer
x = 303,240.33
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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.