Finding the Fourth Proportional to 103,491.70, 155,207.50 and 40,297.70
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Solution
The fourth proportional to 103,491.70, 155,207.50 and 40,297.70 is: 60,434.85
Step by Step Solution
- Step 1: Write the proportion equation
103,491.70 : 155,207.50 = 40,297.70 : x - Step 2: Convert to fraction form
103,491.70/155,207.50 = 40,297.70/x - Step 3: Cross multiply
103,491.70x = 155,207.50 × 40,297.70 - Step 4: Simplify right side
103,491.70x = 6,254,505,272.75 - Step 5: Solve for x
x = 6,254,505,272.75/103,491.70 - Step 6: Final answer
x = 60,434.85
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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.