Finding the Fourth Proportional to 140,821.68, 211,242.24 and 40,982.70
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Solution
The fourth proportional to 140,821.68, 211,242.24 and 40,982.70 is: 61,476.88
Step by Step Solution
- Step 1: Write the proportion equation
140,821.68 : 211,242.24 = 40,982.70 : x - Step 2: Convert to fraction form
140,821.68/211,242.24 = 40,982.70/x - Step 3: Cross multiply
140,821.68x = 211,242.24 × 40,982.70 - Step 4: Simplify right side
140,821.68x = 8,657,277,349.25 - Step 5: Solve for x
x = 8,657,277,349.25/140,821.68 - Step 6: Final answer
x = 61,476.88
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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.