Finding the Fourth Proportional to 228,575.70, 342,863.55 and 218,207.70
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Solution
The fourth proportional to 228,575.70, 342,863.55 and 218,207.70 is: 327,311.55
Step by Step Solution
- Step 1: Write the proportion equation
228,575.70 : 342,863.55 = 218,207.70 : x - Step 2: Convert to fraction form
228,575.70/342,863.55 = 218,207.70/x - Step 3: Cross multiply
228,575.70x = 342,863.55 × 218,207.70 - Step 4: Simplify right side
228,575.70x = 74,815,466,659.34 - Step 5: Solve for x
x = 74,815,466,659.34/228,575.70 - Step 6: Final answer
x = 327,311.55
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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.