Finding the Fourth Proportional to 539.63, 809.55 and 192.99
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Solution
The fourth proportional to 539.63, 809.55 and 192.99 is: 289.52
Step by Step Solution
- Step 1: Write the proportion equation
539.63 : 809.55 = 192.99 : x - Step 2: Convert to fraction form
539.63/809.55 = 192.99/x - Step 3: Cross multiply
539.63x = 809.55 × 192.99 - Step 4: Simplify right side
539.63x = 156,235.05 - Step 5: Solve for x
x = 156,235.05/539.63 - Step 6: Final answer
x = 289.52
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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.