Finding the Fourth Proportional to 486,591.70, 729,887.55 and 154,167.70
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Solution
The fourth proportional to 486,591.70, 729,887.55 and 154,167.70 is: 231,251.55
Step by Step Solution
- Step 1: Write the proportion equation
486,591.70 : 729,887.55 = 154,167.70 : x - Step 2: Convert to fraction form
486,591.70/729,887.55 = 154,167.70/x - Step 3: Cross multiply
486,591.70x = 729,887.55 × 154,167.70 - Step 4: Simplify right side
486,591.70x = 112,525,084,842.14 - Step 5: Solve for x
x = 112,525,084,842.14/486,591.70 - Step 6: Final answer
x = 231,251.55
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1.5x scale
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.