Finding the Fourth Proportional to 216,068.40, 324,102.60 and 121,201.20
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Solution
The fourth proportional to 216,068.40, 324,102.60 and 121,201.20 is: 181,801.80
Step by Step Solution
- Step 1: Write the proportion equation
216,068.40 : 324,102.60 = 121,201.20 : x - Step 2: Convert to fraction form
216,068.40/324,102.60 = 121,201.20/x - Step 3: Cross multiply
216,068.40x = 324,102.60 × 121,201.20 - Step 4: Simplify right side
216,068.40x = 39,281,624,043.12 - Step 5: Solve for x
x = 39,281,624,043.12/216,068.40 - Step 6: Final answer
x = 181,801.80
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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.