Finding the Fourth Proportional to 225,408.78, 310,993.70 and 129,902.49
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Solution
The fourth proportional to 225,408.78, 310,993.70 and 129,902.49 is: 179,224.85
Step by Step Solution
- Step 1: Write the proportion equation
225,408.78 : 310,993.70 = 129,902.49 : x - Step 2: Convert to fraction form
225,408.78/310,993.70 = 129,902.49/x - Step 3: Cross multiply
225,408.78x = 310,993.70 × 129,902.49 - Step 4: Simplify right side
225,408.78x = 40,398,855,354.80 - Step 5: Solve for x
x = 40,398,855,354.80/225,408.78 - Step 6: Final answer
x = 179,224.85
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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.