Finding the Fourth Proportional to 261,436.84, 392,155.74 and 111,551.08
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Solution
The fourth proportional to 261,436.84, 392,155.74 and 111,551.08 is: 167,326.82
Step by Step Solution
- Step 1: Write the proportion equation
261,436.84 : 392,155.74 = 111,551.08 : x - Step 2: Convert to fraction form
261,436.84/392,155.74 = 111,551.08/x - Step 3: Cross multiply
261,436.84x = 392,155.74 × 111,551.08 - Step 4: Simplify right side
261,436.84x = 43,745,396,325.20 - Step 5: Solve for x
x = 43,745,396,325.20/261,436.84 - Step 6: Final answer
x = 167,326.82
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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.