Finding the Fourth Proportional to 276.99, 415.73 and 147.08
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Solution
The fourth proportional to 276.99, 415.73 and 147.08 is: 220.75
Step by Step Solution
- Step 1: Write the proportion equation
276.99 : 415.73 = 147.08 : x - Step 2: Convert to fraction form
276.99/415.73 = 147.08/x - Step 3: Cross multiply
276.99x = 415.73 × 147.08 - Step 4: Simplify right side
276.99x = 61,145.57 - Step 5: Solve for x
x = 61,145.57/276.99 - Step 6: Final answer
x = 220.75
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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.