Finding the Fourth Proportional to 178,448.40, 246,279.36 and 106,828.40
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Solution
The fourth proportional to 178,448.40, 246,279.36 and 106,828.40 is: 147,435.50
Step by Step Solution
- Step 1: Write the proportion equation
178,448.40 : 246,279.36 = 106,828.40 : x - Step 2: Convert to fraction form
178,448.40/246,279.36 = 106,828.40/x - Step 3: Cross multiply
178,448.40x = 246,279.36 × 106,828.40 - Step 4: Simplify right side
178,448.40x = 26,309,628,750.43 - Step 5: Solve for x
x = 26,309,628,750.43/178,448.40 - Step 6: Final answer
x = 147,435.50
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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.