Finding the Fourth Proportional to 402,373.20, 603,632.70 and 202,189.80
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Solution
The fourth proportional to 402,373.20, 603,632.70 and 202,189.80 is: 303,321.33
Step by Step Solution
- Step 1: Write the proportion equation
402,373.20 : 603,632.70 = 202,189.80 : x - Step 2: Convert to fraction form
402,373.20/603,632.70 = 202,189.80/x - Step 3: Cross multiply
402,373.20x = 603,632.70 × 202,189.80 - Step 4: Simplify right side
402,373.20x = 122,048,374,886.46 - Step 5: Solve for x
x = 122,048,374,886.46/402,373.20 - Step 6: Final answer
x = 303,321.33
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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.