Finding the Fourth Proportional to 534,138.40, 801,207.60 and 254,202.40
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Solution
The fourth proportional to 534,138.40, 801,207.60 and 254,202.40 is: 381,303.60
Step by Step Solution
- Step 1: Write the proportion equation
534,138.40 : 801,207.60 = 254,202.40 : x - Step 2: Convert to fraction form
534,138.40/801,207.60 = 254,202.40/x - Step 3: Cross multiply
534,138.40x = 801,207.60 × 254,202.40 - Step 4: Simplify right side
534,138.40x = 203,668,894,818.24 - Step 5: Solve for x
x = 203,668,894,818.24/534,138.40 - Step 6: Final answer
x = 381,303.60
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Double scale
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Similar ratio
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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.