Finding the Fourth Proportional to 245,311.70, 367,967.55 and 214,207.70
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Solution
The fourth proportional to 245,311.70, 367,967.55 and 214,207.70 is: 321,311.55
Step by Step Solution
- Step 1: Write the proportion equation
245,311.70 : 367,967.55 = 214,207.70 : x - Step 2: Convert to fraction form
245,311.70/367,967.55 = 214,207.70/x - Step 3: Cross multiply
245,311.70x = 367,967.55 × 214,207.70 - Step 4: Simplify right side
245,311.70x = 78,821,482,560.14 - Step 5: Solve for x
x = 78,821,482,560.14/245,311.70 - Step 6: Final answer
x = 321,311.55
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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.