Finding the Fourth Proportional to 217,541.97, 326,274.03 and 138,421.17
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Solution
The fourth proportional to 217,541.97, 326,274.03 and 138,421.17 is: 207,606.99
Step by Step Solution
- Step 1: Write the proportion equation
217,541.97 : 326,274.03 = 138,421.17 : x - Step 2: Convert to fraction form
217,541.97/326,274.03 = 138,421.17/x - Step 3: Cross multiply
217,541.97x = 326,274.03 × 138,421.17 - Step 4: Simplify right side
217,541.97x = 45,163,232,973.22 - Step 5: Solve for x
x = 45,163,232,973.22/217,541.97 - Step 6: Final answer
x = 207,606.99
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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.