Finding the Fourth Proportional to 236.65, 354.99 and 74.33
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Solution
The fourth proportional to 236.65, 354.99 and 74.33 is: 111.50
Step by Step Solution
- Step 1: Write the proportion equation
236.65 : 354.99 = 74.33 : x - Step 2: Convert to fraction form
236.65/354.99 = 74.33/x - Step 3: Cross multiply
236.65x = 354.99 × 74.33 - Step 4: Simplify right side
236.65x = 26,386.41 - Step 5: Solve for x
x = 26,386.41/236.65 - Step 6: Final answer
x = 111.50
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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.