Finding the Fourth Proportional to 308,562.76, 463,107.12 and 121,705.48
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Solution
The fourth proportional to 308,562.76, 463,107.12 and 121,705.48 is: 182,661.95
Step by Step Solution
- Step 1: Write the proportion equation
308,562.76 : 463,107.12 = 121,705.48 : x - Step 2: Convert to fraction form
308,562.76/463,107.12 = 121,705.48/x - Step 3: Cross multiply
308,562.76x = 463,107.12 × 121,705.48 - Step 4: Simplify right side
308,562.76x = 56,362,674,331.02 - Step 5: Solve for x
x = 56,362,674,331.02/308,562.76 - Step 6: Final answer
x = 182,661.95
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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.