Finding the Fourth Proportional to 155,611.64, 214,292.09 and 135,184.38
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Solution
The fourth proportional to 155,611.64, 214,292.09 and 135,184.38 is: 186,161.80
Step by Step Solution
- Step 1: Write the proportion equation
155,611.64 : 214,292.09 = 135,184.38 : x - Step 2: Convert to fraction form
155,611.64/214,292.09 = 135,184.38/x - Step 3: Cross multiply
155,611.64x = 214,292.09 × 135,184.38 - Step 4: Simplify right side
155,611.64x = 28,968,943,325.55 - Step 5: Solve for x
x = 28,968,943,325.55/155,611.64 - Step 6: Final answer
x = 186,161.80
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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.