Finding the Fourth Proportional to 189,272.97, 283,948.64 and 76,953.21
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Solution
The fourth proportional to 189,272.97, 283,948.64 and 76,953.21 is: 115,445.74
Step by Step Solution
- Step 1: Write the proportion equation
189,272.97 : 283,948.64 = 76,953.21 : x - Step 2: Convert to fraction form
189,272.97/283,948.64 = 76,953.21/x - Step 3: Cross multiply
189,272.97x = 283,948.64 × 76,953.21 - Step 4: Simplify right side
189,272.97x = 21,850,758,162.14 - Step 5: Solve for x
x = 21,850,758,162.14/189,272.97 - Step 6: Final answer
x = 115,445.74
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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.