Finding the Fourth Proportional to 285,394.70, 427,760.48 and 107,788.70
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Solution
The fourth proportional to 285,394.70, 427,760.48 and 107,788.70 is: 161,557.82
Step by Step Solution
- Step 1: Write the proportion equation
285,394.70 : 427,760.48 = 107,788.70 : x - Step 2: Convert to fraction form
285,394.70/427,760.48 = 107,788.70/x - Step 3: Cross multiply
285,394.70x = 427,760.48 × 107,788.70 - Step 4: Simplify right side
285,394.70x = 46,107,744,181.25 - Step 5: Solve for x
x = 46,107,744,181.25/285,394.70 - Step 6: Final answer
x = 161,557.82
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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.