Finding the Fourth Proportional to 281.03, 420.93 and 232.13
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Solution
The fourth proportional to 281.03, 420.93 and 232.13 is: 347.70
Step by Step Solution
- Step 1: Write the proportion equation
281.03 : 420.93 = 232.13 : x - Step 2: Convert to fraction form
281.03/420.93 = 232.13/x - Step 3: Cross multiply
281.03x = 420.93 × 232.13 - Step 4: Simplify right side
281.03x = 97,711.53 - Step 5: Solve for x
x = 97,711.53/281.03 - Step 6: Final answer
x = 347.70
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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.