Finding the Fourth Proportional to 289,405.58, 399,341.75 and 166,902.53
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Solution
The fourth proportional to 289,405.58, 399,341.75 and 166,902.53 is: 230,303.60
Step by Step Solution
- Step 1: Write the proportion equation
289,405.58 : 399,341.75 = 166,902.53 : x - Step 2: Convert to fraction form
289,405.58/399,341.75 = 166,902.53/x - Step 3: Cross multiply
289,405.58x = 399,341.75 × 166,902.53 - Step 4: Simplify right side
289,405.58x = 66,651,145,578.41 - Step 5: Solve for x
x = 66,651,145,578.41/289,405.58 - Step 6: Final answer
x = 230,303.60
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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.