Finding the Fourth Proportional to 270.99, 373.77 and 221.76
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Solution
The fourth proportional to 270.99, 373.77 and 221.76 is: 305.87
Step by Step Solution
- Step 1: Write the proportion equation
270.99 : 373.77 = 221.76 : x - Step 2: Convert to fraction form
270.99/373.77 = 221.76/x - Step 3: Cross multiply
270.99x = 373.77 × 221.76 - Step 4: Simplify right side
270.99x = 82,887.24 - Step 5: Solve for x
x = 82,887.24/270.99 - Step 6: Final answer
x = 305.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.