Finding the Fourth Proportional to 312,968.68, 469,335.14 and 113,239.68
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Solution
The fourth proportional to 312,968.68, 469,335.14 and 113,239.68 is: 169,816.87
Step by Step Solution
- Step 1: Write the proportion equation
312,968.68 : 469,335.14 = 113,239.68 : x - Step 2: Convert to fraction form
312,968.68/469,335.14 = 113,239.68/x - Step 3: Cross multiply
312,968.68x = 469,335.14 × 113,239.68 - Step 4: Simplify right side
312,968.68x = 53,147,361,066.36 - Step 5: Solve for x
x = 53,147,361,066.36/312,968.68 - Step 6: Final answer
x = 169,816.87
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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.