Finding the Fourth Proportional to 416.76, 575.08 and 239.67
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Solution
The fourth proportional to 416.76, 575.08 and 239.67 is: 330.72
Step by Step Solution
- Step 1: Write the proportion equation
416.76 : 575.08 = 239.67 : x - Step 2: Convert to fraction form
416.76/575.08 = 239.67/x - Step 3: Cross multiply
416.76x = 575.08 × 239.67 - Step 4: Simplify right side
416.76x = 137,828.23 - Step 5: Solve for x
x = 137,828.23/416.76 - Step 6: Final answer
x = 330.72
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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.