Finding the Fourth Proportional to 405.23, 559.26 and 239.44
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Solution
The fourth proportional to 405.23, 559.26 and 239.44 is: 330.45
Step by Step Solution
- Step 1: Write the proportion equation
405.23 : 559.26 = 239.44 : x - Step 2: Convert to fraction form
405.23/559.26 = 239.44/x - Step 3: Cross multiply
405.23x = 559.26 × 239.44 - Step 4: Simplify right side
405.23x = 133,907.82 - Step 5: Solve for x
x = 133,907.82/405.23 - Step 6: Final answer
x = 330.45
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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.