Finding the Fourth Proportional to 312,948.80, 469,425.12 and 76,293.44
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Solution
The fourth proportional to 312,948.80, 469,425.12 and 76,293.44 is: 114,440.63
Step by Step Solution
- Step 1: Write the proportion equation
312,948.80 : 469,425.12 = 76,293.44 : x - Step 2: Convert to fraction form
312,948.80/469,425.12 = 76,293.44/x - Step 3: Cross multiply
312,948.80x = 469,425.12 × 76,293.44 - Step 4: Simplify right side
312,948.80x = 35,814,057,227.21 - Step 5: Solve for x
x = 35,814,057,227.21/312,948.80 - Step 6: Final answer
x = 114,440.63
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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.