Finding the Fourth Proportional to 498,836.36, 748,365.11 and 143,822.68
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Solution
The fourth proportional to 498,836.36, 748,365.11 and 143,822.68 is: 215,765.89
Step by Step Solution
- Step 1: Write the proportion equation
498,836.36 : 748,365.11 = 143,822.68 : x - Step 2: Convert to fraction form
498,836.36/748,365.11 = 143,822.68/x - Step 3: Cross multiply
498,836.36x = 748,365.11 × 143,822.68 - Step 4: Simplify right side
498,836.36x = 107,631,873,688.00 - Step 5: Solve for x
x = 107,631,873,688.00/498,836.36 - Step 6: Final answer
x = 215,765.89
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.