Finding the Fourth Proportional to 486,649.70, 729,976.26 and 149,688.08
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Solution
The fourth proportional to 486,649.70, 729,976.26 and 149,688.08 is: 224,532.64
Step by Step Solution
- Step 1: Write the proportion equation
486,649.70 : 729,976.26 = 149,688.08 : x - Step 2: Convert to fraction form
486,649.70/729,976.26 = 149,688.08/x - Step 3: Cross multiply
486,649.70x = 729,976.26 × 149,688.08 - Step 4: Simplify right side
486,649.70x = 109,268,741,155.10 - Step 5: Solve for x
x = 109,268,741,155.10/486,649.70 - Step 6: Final answer
x = 224,532.64
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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.