Finding the Fourth Proportional to 486,490.70, 729,491.05 and 162,163.96
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Solution
The fourth proportional to 486,490.70, 729,491.05 and 162,163.96 is: 243,164.27
Step by Step Solution
- Step 1: Write the proportion equation
486,490.70 : 729,491.05 = 162,163.96 : x - Step 2: Convert to fraction form
486,490.70/729,491.05 = 162,163.96/x - Step 3: Cross multiply
486,490.70x = 729,491.05 × 162,163.96 - Step 4: Simplify right side
486,490.70x = 118,297,156,641.74 - Step 5: Solve for x
x = 118,297,156,641.74/486,490.70 - Step 6: Final answer
x = 243,164.27
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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.