Finding the Fourth Proportional to 419,155.19, 578,434.23 and 228,170.01
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Solution
The fourth proportional to 419,155.19, 578,434.23 and 228,170.01 is: 314,874.65
Step by Step Solution
- Step 1: Write the proportion equation
419,155.19 : 578,434.23 = 228,170.01 : x - Step 2: Convert to fraction form
419,155.19/578,434.23 = 228,170.01/x - Step 3: Cross multiply
419,155.19x = 578,434.23 × 228,170.01 - Step 4: Simplify right side
419,155.19x = 131,981,344,043.44 - Step 5: Solve for x
x = 131,981,344,043.44/419,155.19 - Step 6: Final answer
x = 314,874.65
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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.