Finding the Fourth Proportional to 102.47, 153.68 and 29.33
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Solution
The fourth proportional to 102.47, 153.68 and 29.33 is: 43.99
Step by Step Solution
- Step 1: Write the proportion equation
102.47 : 153.68 = 29.33 : x - Step 2: Convert to fraction form
102.47/153.68 = 29.33/x - Step 3: Cross multiply
102.47x = 153.68 × 29.33 - Step 4: Simplify right side
102.47x = 4,507.43 - Step 5: Solve for x
x = 4,507.43/102.47 - Step 6: Final answer
x = 43.99
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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.