Finding the Fourth Proportional to 490,161.20, 735,241.80 and 157,737.20
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Solution
The fourth proportional to 490,161.20, 735,241.80 and 157,737.20 is: 236,605.80
Step by Step Solution
- Step 1: Write the proportion equation
490,161.20 : 735,241.80 = 157,737.20 : x - Step 2: Convert to fraction form
490,161.20/735,241.80 = 157,737.20/x - Step 3: Cross multiply
490,161.20x = 735,241.80 × 157,737.20 - Step 4: Simplify right side
490,161.20x = 115,974,982,854.96 - Step 5: Solve for x
x = 115,974,982,854.96/490,161.20 - Step 6: Final answer
x = 236,605.80
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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.