Finding the Fourth Proportional to 323,462.20, 485,193.30 and 205,655.80
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Solution
The fourth proportional to 323,462.20, 485,193.30 and 205,655.80 is: 308,483.70
Step by Step Solution
- Step 1: Write the proportion equation
323,462.20 : 485,193.30 = 205,655.80 : x - Step 2: Convert to fraction form
323,462.20/485,193.30 = 205,655.80/x - Step 3: Cross multiply
323,462.20x = 485,193.30 × 205,655.80 - Step 4: Simplify right side
323,462.20x = 99,782,816,266.14 - Step 5: Solve for x
x = 99,782,816,266.14/323,462.20 - Step 6: Final answer
x = 308,483.70
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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.