Finding the Fourth Proportional to 297,321.12, 410,303.42 and 161,355.09
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Solution
The fourth proportional to 297,321.12, 410,303.42 and 161,355.09 is: 222,670.17
Step by Step Solution
- Step 1: Write the proportion equation
297,321.12 : 410,303.42 = 161,355.09 : x - Step 2: Convert to fraction form
297,321.12/410,303.42 = 161,355.09/x - Step 3: Cross multiply
297,321.12x = 410,303.42 × 161,355.09 - Step 4: Simplify right side
297,321.12x = 66,204,544,454.63 - Step 5: Solve for x
x = 66,204,544,454.63/297,321.12 - Step 6: Final answer
x = 222,670.17
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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.