Finding the Fourth Proportional to 303,963.40, 456,204.30 and 135,742.60
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Solution
The fourth proportional to 303,963.40, 456,204.30 and 135,742.60 is: 203,729.65
Step by Step Solution
- Step 1: Write the proportion equation
303,963.40 : 456,204.30 = 135,742.60 : x - Step 2: Convert to fraction form
303,963.40/456,204.30 = 135,742.60/x - Step 3: Cross multiply
303,963.40x = 456,204.30 × 135,742.60 - Step 4: Simplify right side
303,963.40x = 61,926,357,813.18 - Step 5: Solve for x
x = 61,926,357,813.18/303,963.40 - Step 6: Final answer
x = 203,729.65
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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.