Finding the Fourth Proportional to 138,418.08, 207,656.32 and 44,916.56
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Solution
The fourth proportional to 138,418.08, 207,656.32 and 44,916.56 is: 67,384.32
Step by Step Solution
- Step 1: Write the proportion equation
138,418.08 : 207,656.32 = 44,916.56 : x - Step 2: Convert to fraction form
138,418.08/207,656.32 = 44,916.56/x - Step 3: Cross multiply
138,418.08x = 207,656.32 × 44,916.56 - Step 4: Simplify right side
138,418.08x = 9,327,207,556.66 - Step 5: Solve for x
x = 9,327,207,556.66/138,418.08 - Step 6: Final answer
x = 67,384.32
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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.