Finding the Fourth Proportional to 138,602.80, 207,466.80 and 134,228.80
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Solution
The fourth proportional to 138,602.80, 207,466.80 and 134,228.80 is: 200,919.60
Step by Step Solution
- Step 1: Write the proportion equation
138,602.80 : 207,466.80 = 134,228.80 : x - Step 2: Convert to fraction form
138,602.80/207,466.80 = 134,228.80/x - Step 3: Cross multiply
138,602.80x = 207,466.80 × 134,228.80 - Step 4: Simplify right side
138,602.80x = 27,848,019,603.84 - Step 5: Solve for x
x = 27,848,019,603.84/138,602.80 - Step 6: Final answer
x = 200,919.60
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1.5x scale
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.