Finding the Fourth Proportional to 339.28, 508.97 and 122.92
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Solution
The fourth proportional to 339.28, 508.97 and 122.92 is: 184.40
Step by Step Solution
- Step 1: Write the proportion equation
339.28 : 508.97 = 122.92 : x - Step 2: Convert to fraction form
339.28/508.97 = 122.92/x - Step 3: Cross multiply
339.28x = 508.97 × 122.92 - Step 4: Simplify right side
339.28x = 62,561.98 - Step 5: Solve for x
x = 62,561.98/339.28 - Step 6: Final answer
x = 184.40
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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.