Finding the Fourth Proportional to 165.33, 247.99 and 74.00
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Solution
The fourth proportional to 165.33, 247.99 and 74.00 is: 110.99
Step by Step Solution
- Step 1: Write the proportion equation
165.33 : 247.99 = 74.00 : x - Step 2: Convert to fraction form
165.33/247.99 = 74.00/x - Step 3: Cross multiply
165.33x = 247.99 × 74.00 - Step 4: Simplify right side
165.33x = 18,349.65 - Step 5: Solve for x
x = 18,349.65/165.33 - Step 6: Final answer
x = 110.99
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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.