Finding the Fourth Proportional to 276.13, 415.09 and 256.08
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Solution
The fourth proportional to 276.13, 415.09 and 256.08 is: 384.95
Step by Step Solution
- Step 1: Write the proportion equation
276.13 : 415.09 = 256.08 : x - Step 2: Convert to fraction form
276.13/415.09 = 256.08/x - Step 3: Cross multiply
276.13x = 415.09 × 256.08 - Step 4: Simplify right side
276.13x = 106,296.25 - Step 5: Solve for x
x = 106,296.25/276.13 - Step 6: Final answer
x = 384.95
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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.