Finding the Fourth Proportional to 257,764.68, 386,491.68 and 115,584.21
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Solution
The fourth proportional to 257,764.68, 386,491.68 and 115,584.21 is: 173,306.66
Step by Step Solution
- Step 1: Write the proportion equation
257,764.68 : 386,491.68 = 115,584.21 : x - Step 2: Convert to fraction form
257,764.68/386,491.68 = 115,584.21/x - Step 3: Cross multiply
257,764.68x = 386,491.68 × 115,584.21 - Step 4: Simplify right side
257,764.68x = 44,672,335,504.37 - Step 5: Solve for x
x = 44,672,335,504.37/257,764.68 - Step 6: Final answer
x = 173,306.66
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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.