Finding the Fourth Proportional to 253,740.06, 350,161.28 and 139,023.05
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Solution
The fourth proportional to 253,740.06, 350,161.28 and 139,023.05 is: 191,851.80
Step by Step Solution
- Step 1: Write the proportion equation
253,740.06 : 350,161.28 = 139,023.05 : x - Step 2: Convert to fraction form
253,740.06/350,161.28 = 139,023.05/x - Step 3: Cross multiply
253,740.06x = 350,161.28 × 139,023.05 - Step 4: Simplify right side
253,740.06x = 48,680,488,880.09 - Step 5: Solve for x
x = 48,680,488,880.09/253,740.06 - Step 6: Final answer
x = 191,851.80
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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.