Finding the Fourth Proportional to 278.70, 382.99 and 266.02
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Solution
The fourth proportional to 278.70, 382.99 and 266.02 is: 365.57
Step by Step Solution
- Step 1: Write the proportion equation
278.70 : 382.99 = 266.02 : x - Step 2: Convert to fraction form
278.70/382.99 = 266.02/x - Step 3: Cross multiply
278.70x = 382.99 × 266.02 - Step 4: Simplify right side
278.70x = 101,883.00 - Step 5: Solve for x
x = 101,883.00/278.70 - Step 6: Final answer
x = 365.57
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.