Finding the Fourth Proportional to 361,879.40, 542,819.10 and 228,909.80
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Solution
The fourth proportional to 361,879.40, 542,819.10 and 228,909.80 is: 343,364.70
Step by Step Solution
- Step 1: Write the proportion equation
361,879.40 : 542,819.10 = 228,909.80 : x - Step 2: Convert to fraction form
361,879.40/542,819.10 = 228,909.80/x - Step 3: Cross multiply
361,879.40x = 542,819.10 × 228,909.80 - Step 4: Simplify right side
361,879.40x = 124,256,611,617.18 - Step 5: Solve for x
x = 124,256,611,617.18/361,879.40 - Step 6: Final answer
x = 343,364.70
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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.