Finding the Fourth Proportional to 419,198.04, 578,475.12 and 228,212.08
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Solution
The fourth proportional to 419,198.04, 578,475.12 and 228,212.08 is: 314,922.78
Step by Step Solution
- Step 1: Write the proportion equation
419,198.04 : 578,475.12 = 228,212.08 : x - Step 2: Convert to fraction form
419,198.04/578,475.12 = 228,212.08/x - Step 3: Cross multiply
419,198.04x = 578,475.12 × 228,212.08 - Step 4: Simplify right side
419,198.04x = 132,015,010,363.45 - Step 5: Solve for x
x = 132,015,010,363.45/419,198.04 - Step 6: Final answer
x = 314,922.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.