Finding the Fourth Proportional to 323,797.11, 485,651.91 and 87,153.99
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Solution
The fourth proportional to 323,797.11, 485,651.91 and 87,153.99 is: 130,719.20
Step by Step Solution
- Step 1: Write the proportion equation
323,797.11 : 485,651.91 = 87,153.99 : x - Step 2: Convert to fraction form
323,797.11/485,651.91 = 87,153.99/x - Step 3: Cross multiply
323,797.11x = 485,651.91 × 87,153.99 - Step 4: Simplify right side
323,797.11x = 42,326,500,213.25 - Step 5: Solve for x
x = 42,326,500,213.25/323,797.11 - Step 6: Final answer
x = 130,719.20
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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.