Finding the Fourth Proportional to 209,161.18, 313,779.44 and 76,228.03
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Solution
The fourth proportional to 209,161.18, 313,779.44 and 76,228.03 is: 114,355.77
Step by Step Solution
- Step 1: Write the proportion equation
209,161.18 : 313,779.44 = 76,228.03 : x - Step 2: Convert to fraction form
209,161.18/313,779.44 = 76,228.03/x - Step 3: Cross multiply
209,161.18x = 313,779.44 × 76,228.03 - Step 4: Simplify right side
209,161.18x = 23,918,788,565.70 - Step 5: Solve for x
x = 23,918,788,565.70/209,161.18 - Step 6: Final answer
x = 114,355.77
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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.