Finding the Fourth Proportional to 276.71, 415.06 and 131.99
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Solution
The fourth proportional to 276.71, 415.06 and 131.99 is: 197.98
Step by Step Solution
- Step 1: Write the proportion equation
276.71 : 415.06 = 131.99 : x - Step 2: Convert to fraction form
276.71/415.06 = 131.99/x - Step 3: Cross multiply
276.71x = 415.06 × 131.99 - Step 4: Simplify right side
276.71x = 54,781.36 - Step 5: Solve for x
x = 54,781.36/276.71 - Step 6: Final answer
x = 197.98
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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.