Finding the Fourth Proportional to 223,132.05, 307,408.37 and 154,155.44
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Solution
The fourth proportional to 223,132.05, 307,408.37 and 154,155.44 is: 212,379.49
Step by Step Solution
- Step 1: Write the proportion equation
223,132.05 : 307,408.37 = 154,155.44 : x - Step 2: Convert to fraction form
223,132.05/307,408.37 = 154,155.44/x - Step 3: Cross multiply
223,132.05x = 307,408.37 × 154,155.44 - Step 4: Simplify right side
223,132.05x = 47,388,670,229.21 - Step 5: Solve for x
x = 47,388,670,229.21/223,132.05 - Step 6: Final answer
x = 212,379.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.