Finding the Fourth Proportional to 539,640.88, 809,320.21 and 160,459.49
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Solution
The fourth proportional to 539,640.88, 809,320.21 and 160,459.49 is: 240,647.28
Step by Step Solution
- Step 1: Write the proportion equation
539,640.88 : 809,320.21 = 160,459.49 : x - Step 2: Convert to fraction form
539,640.88/809,320.21 = 160,459.49/x - Step 3: Cross multiply
539,640.88x = 809,320.21 × 160,459.49 - Step 4: Simplify right side
539,640.88x = 129,863,108,143.29 - Step 5: Solve for x
x = 129,863,108,143.29/539,640.88 - Step 6: Final answer
x = 240,647.28
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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.