Finding the Fourth Proportional to 313,968.18, 471,903.84 and 207,714.60
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Solution
The fourth proportional to 313,968.18, 471,903.84 and 207,714.60 is: 312,201.44
Step by Step Solution
- Step 1: Write the proportion equation
313,968.18 : 471,903.84 = 207,714.60 : x - Step 2: Convert to fraction form
313,968.18/471,903.84 = 207,714.60/x - Step 3: Cross multiply
313,968.18x = 471,903.84 × 207,714.60 - Step 4: Simplify right side
313,968.18x = 98,021,317,364.06 - Step 5: Solve for x
x = 98,021,317,364.06/313,968.18 - Step 6: Final answer
x = 312,201.44
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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.