Finding the Fourth Proportional to 339.36, 509.08 and 122.94
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Solution
The fourth proportional to 339.36, 509.08 and 122.94 is: 184.42
Step by Step Solution
- Step 1: Write the proportion equation
339.36 : 509.08 = 122.94 : x - Step 2: Convert to fraction form
339.36/509.08 = 122.94/x - Step 3: Cross multiply
339.36x = 509.08 × 122.94 - Step 4: Simplify right side
339.36x = 62,586.30 - Step 5: Solve for x
x = 62,586.30/339.36 - Step 6: Final answer
x = 184.42
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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.