Finding the Fourth Proportional to 303,935.60, 455,903.40 and 135,536.60
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Solution
The fourth proportional to 303,935.60, 455,903.40 and 135,536.60 is: 203,304.90
Step by Step Solution
- Step 1: Write the proportion equation
303,935.60 : 455,903.40 = 135,536.60 : x - Step 2: Convert to fraction form
303,935.60/455,903.40 = 135,536.60/x - Step 3: Cross multiply
303,935.60x = 455,903.40 × 135,536.60 - Step 4: Simplify right side
303,935.60x = 61,791,596,764.44 - Step 5: Solve for x
x = 61,791,596,764.44/303,935.60 - Step 6: Final answer
x = 203,304.90
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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.