Finding the Fourth Proportional to 138,176.40, 207,264.60 and 135,104.40
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Solution
The fourth proportional to 138,176.40, 207,264.60 and 135,104.40 is: 202,656.60
Step by Step Solution
- Step 1: Write the proportion equation
138,176.40 : 207,264.60 = 135,104.40 : x - Step 2: Convert to fraction form
138,176.40/207,264.60 = 135,104.40/x - Step 3: Cross multiply
138,176.40x = 207,264.60 × 135,104.40 - Step 4: Simplify right side
138,176.40x = 28,002,359,424.24 - Step 5: Solve for x
x = 28,002,359,424.24/138,176.40 - Step 6: Final answer
x = 202,656.60
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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.