Finding the Fourth Proportional to 178,664.14, 267,995.94 and 139,250.80
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Solution
The fourth proportional to 178,664.14, 267,995.94 and 139,250.80 is: 208,875.99
Step by Step Solution
- Step 1: Write the proportion equation
178,664.14 : 267,995.94 = 139,250.80 : x - Step 2: Convert to fraction form
178,664.14/267,995.94 = 139,250.80/x - Step 3: Cross multiply
178,664.14x = 267,995.94 × 139,250.80 - Step 4: Simplify right side
178,664.14x = 37,318,649,041.75 - Step 5: Solve for x
x = 37,318,649,041.75/178,664.14 - Step 6: Final answer
x = 208,875.99
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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.