Finding the Fourth Proportional to 326,207.20, 488,727.60 and 266,720.80
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Solution
The fourth proportional to 326,207.20, 488,727.60 and 266,720.80 is: 399,604.35
Step by Step Solution
- Step 1: Write the proportion equation
326,207.20 : 488,727.60 = 266,720.80 : x - Step 2: Convert to fraction form
326,207.20/488,727.60 = 266,720.80/x - Step 3: Cross multiply
326,207.20x = 488,727.60 × 266,720.80 - Step 4: Simplify right side
326,207.20x = 130,353,816,454.08 - Step 5: Solve for x
x = 130,353,816,454.08/326,207.20 - Step 6: Final answer
x = 399,604.35
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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.