Finding the Fourth Proportional to 470,422.18, 649,183.46 and 255,562.49
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Solution
The fourth proportional to 470,422.18, 649,183.46 and 255,562.49 is: 352,676.70
Step by Step Solution
- Step 1: Write the proportion equation
470,422.18 : 649,183.46 = 255,562.49 : x - Step 2: Convert to fraction form
470,422.18/649,183.46 = 255,562.49/x - Step 3: Cross multiply
470,422.18x = 649,183.46 × 255,562.49 - Step 4: Simplify right side
470,422.18x = 165,906,943,287.10 - Step 5: Solve for x
x = 165,906,943,287.10/470,422.18 - Step 6: Final answer
x = 352,676.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.