Finding the Fourth Proportional to 1,268, 1,902.32 and 356
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Solution
The fourth proportional to 1,268, 1,902.32 and 356 is: 534.09
Step by Step Solution
- Step 1: Write the proportion equation
1,268 : 1,902.32 = 356 : x - Step 2: Convert to fraction form
1,268/1,902.32 = 356/x - Step 3: Cross multiply
1,268x = 1,902.32 × 356 - Step 4: Simplify right side
1,268x = 677,225.92 - Step 5: Solve for x
x = 677,225.92/1,268 - Step 6: Final answer
x = 534.09
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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.