Finding the Fourth Proportional to 178,840.79, 268,012.07 and 134,415.75
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Solution
The fourth proportional to 178,840.79, 268,012.07 and 134,415.75 is: 201,436.40
Step by Step Solution
- Step 1: Write the proportion equation
178,840.79 : 268,012.07 = 134,415.75 : x - Step 2: Convert to fraction form
178,840.79/268,012.07 = 134,415.75/x - Step 3: Cross multiply
178,840.79x = 268,012.07 × 134,415.75 - Step 4: Simplify right side
178,840.79x = 36,025,043,857.08 - Step 5: Solve for x
x = 36,025,043,857.08/178,840.79 - Step 6: Final answer
x = 201,436.40
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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.