Finding the Fourth Proportional to 339.24, 508.63 and 133.75
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Solution
The fourth proportional to 339.24, 508.63 and 133.75 is: 200.54
Step by Step Solution
- Step 1: Write the proportion equation
339.24 : 508.63 = 133.75 : x - Step 2: Convert to fraction form
339.24/508.63 = 133.75/x - Step 3: Cross multiply
339.24x = 508.63 × 133.75 - Step 4: Simplify right side
339.24x = 68,029.81 - Step 5: Solve for x
x = 68,029.81/339.24 - Step 6: Final answer
x = 200.54
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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.