Finding the Fourth Proportional to 268,938.40, 403,104.14 and 119,158.96
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Solution
The fourth proportional to 268,938.40, 403,104.14 and 119,158.96 is: 178,603.99
Step by Step Solution
- Step 1: Write the proportion equation
268,938.40 : 403,104.14 = 119,158.96 : x - Step 2: Convert to fraction form
268,938.40/403,104.14 = 119,158.96/x - Step 3: Cross multiply
268,938.40x = 403,104.14 × 119,158.96 - Step 4: Simplify right side
268,938.40x = 48,033,470,094.09 - Step 5: Solve for x
x = 48,033,470,094.09/268,938.40 - Step 6: Final answer
x = 178,603.99
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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.