Finding the Fourth Proportional to 265.31, 398.07 and 102.99
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Solution
The fourth proportional to 265.31, 398.07 and 102.99 is: 154.53
Step by Step Solution
- Step 1: Write the proportion equation
265.31 : 398.07 = 102.99 : x - Step 2: Convert to fraction form
265.31/398.07 = 102.99/x - Step 3: Cross multiply
265.31x = 398.07 × 102.99 - Step 4: Simplify right side
265.31x = 40,997.23 - Step 5: Solve for x
x = 40,997.23/265.31 - Step 6: Final answer
x = 154.53
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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.