Finding the Fourth Proportional to 450,163.05, 621,308.12 and 289,219.29
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Solution
The fourth proportional to 450,163.05, 621,308.12 and 289,219.29 is: 399,176.02
Step by Step Solution
- Step 1: Write the proportion equation
450,163.05 : 621,308.12 = 289,219.29 : x - Step 2: Convert to fraction form
450,163.05/621,308.12 = 289,219.29/x - Step 3: Cross multiply
450,163.05x = 621,308.12 × 289,219.29 - Step 4: Simplify right side
450,163.05x = 179,694,293,337.64 - Step 5: Solve for x
x = 179,694,293,337.64/450,163.05 - Step 6: Final answer
x = 399,176.02
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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.