Finding the Fourth Proportional to 261.18, 392.36 and 170.06
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Solution
The fourth proportional to 261.18, 392.36 and 170.06 is: 255.47
Step by Step Solution
- Step 1: Write the proportion equation
261.18 : 392.36 = 170.06 : x - Step 2: Convert to fraction form
261.18/392.36 = 170.06/x - Step 3: Cross multiply
261.18x = 392.36 × 170.06 - Step 4: Simplify right side
261.18x = 66,724.74 - Step 5: Solve for x
x = 66,724.74/261.18 - Step 6: Final answer
x = 255.47
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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.