Finding the Fourth Proportional to 149,728.80, 224,593.20 and 107,519.70
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Solution
The fourth proportional to 149,728.80, 224,593.20 and 107,519.70 is: 161,279.55
Step by Step Solution
- Step 1: Write the proportion equation
149,728.80 : 224,593.20 = 107,519.70 : x - Step 2: Convert to fraction form
149,728.80/224,593.20 = 107,519.70/x - Step 3: Cross multiply
149,728.80x = 224,593.20 × 107,519.70 - Step 4: Simplify right side
149,728.80x = 24,148,193,486.04 - Step 5: Solve for x
x = 24,148,193,486.04/149,728.80 - Step 6: Final answer
x = 161,279.55
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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.