Finding the Fourth Proportional to 154,217.44, 212,802.96 and 87,149.44
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Solution
The fourth proportional to 154,217.44, 212,802.96 and 87,149.44 is: 120,256.56
Step by Step Solution
- Step 1: Write the proportion equation
154,217.44 : 212,802.96 = 87,149.44 : x - Step 2: Convert to fraction form
154,217.44/212,802.96 = 87,149.44/x - Step 3: Cross multiply
154,217.44x = 212,802.96 × 87,149.44 - Step 4: Simplify right side
154,217.44x = 18,545,658,794.34 - Step 5: Solve for x
x = 18,545,658,794.34/154,217.44 - Step 6: Final answer
x = 120,256.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.