Finding the Fourth Proportional to 385,104.36, 531,403.12 and 212,994.98
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Solution
The fourth proportional to 385,104.36, 531,403.12 and 212,994.98 is: 293,910.45
Step by Step Solution
- Step 1: Write the proportion equation
385,104.36 : 531,403.12 = 212,994.98 : x - Step 2: Convert to fraction form
385,104.36/531,403.12 = 212,994.98/x - Step 3: Cross multiply
385,104.36x = 531,403.12 × 212,994.98 - Step 4: Simplify right side
385,104.36x = 113,186,196,916.34 - Step 5: Solve for x
x = 113,186,196,916.34/385,104.36 - Step 6: Final answer
x = 293,910.45
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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.