Finding the Fourth Proportional to 586.49, 879.99 and 257.26
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Solution
The fourth proportional to 586.49, 879.99 and 257.26 is: 386.00
Step by Step Solution
- Step 1: Write the proportion equation
586.49 : 879.99 = 257.26 : x - Step 2: Convert to fraction form
586.49/879.99 = 257.26/x - Step 3: Cross multiply
586.49x = 879.99 × 257.26 - Step 4: Simplify right side
586.49x = 226,386.94 - Step 5: Solve for x
x = 226,386.94/586.49 - Step 6: Final answer
x = 386.00
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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.