Finding the Fourth Proportional to 450,163.55, 621,308.81 and 289,219.79
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Solution
The fourth proportional to 450,163.55, 621,308.81 and 289,219.79 is: 399,176.70
Step by Step Solution
- Step 1: Write the proportion equation
450,163.55 : 621,308.81 = 289,219.79 : x - Step 2: Convert to fraction form
450,163.55/621,308.81 = 289,219.79/x - Step 3: Cross multiply
450,163.55x = 621,308.81 × 289,219.79 - Step 4: Simplify right side
450,163.55x = 179,694,802,107.25 - Step 5: Solve for x
x = 179,694,802,107.25/450,163.55 - Step 6: Final answer
x = 399,176.70
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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.