Finding the Fourth Proportional to 378,774.70, 568,056.92 and 105,158.05
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Solution
The fourth proportional to 378,774.70, 568,056.92 and 105,158.05 is: 157,707.88
Step by Step Solution
- Step 1: Write the proportion equation
378,774.70 : 568,056.92 = 105,158.05 : x - Step 2: Convert to fraction form
378,774.70/568,056.92 = 105,158.05/x - Step 3: Cross multiply
378,774.70x = 568,056.92 × 105,158.05 - Step 4: Simplify right side
378,774.70x = 59,735,756,050.27 - Step 5: Solve for x
x = 59,735,756,050.27/378,774.70 - Step 6: Final answer
x = 157,707.88
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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.