Finding the Fourth Proportional to 317,221.26, 475,956.44 and 139,603.68
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Solution
The fourth proportional to 317,221.26, 475,956.44 and 139,603.68 is: 209,460.33
Step by Step Solution
- Step 1: Write the proportion equation
317,221.26 : 475,956.44 = 139,603.68 : x - Step 2: Convert to fraction form
317,221.26/475,956.44 = 139,603.68/x - Step 3: Cross multiply
317,221.26x = 475,956.44 × 139,603.68 - Step 4: Simplify right side
317,221.26x = 66,445,269,845.68 - Step 5: Solve for x
x = 66,445,269,845.68/317,221.26 - Step 6: Final answer
x = 209,460.33
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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.