Finding the Fourth Proportional to 317,379.20, 437,968.64 and 174,135.68
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Solution
The fourth proportional to 317,379.20, 437,968.64 and 174,135.68 is: 240,299.20
Step by Step Solution
- Step 1: Write the proportion equation
317,379.20 : 437,968.64 = 174,135.68 : x - Step 2: Convert to fraction form
317,379.20/437,968.64 = 174,135.68/x - Step 3: Cross multiply
317,379.20x = 437,968.64 × 174,135.68 - Step 4: Simplify right side
317,379.20x = 76,265,966,945.08 - Step 5: Solve for x
x = 76,265,966,945.08/317,379.20 - Step 6: Final answer
x = 240,299.20
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.