Finding the Fourth Proportional to 194,916.21, 292,476.79 and 138,355.13
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Solution
The fourth proportional to 194,916.21, 292,476.79 and 138,355.13 is: 207,605.43
Step by Step Solution
- Step 1: Write the proportion equation
194,916.21 : 292,476.79 = 138,355.13 : x - Step 2: Convert to fraction form
194,916.21/292,476.79 = 138,355.13/x - Step 3: Cross multiply
194,916.21x = 292,476.79 × 138,355.13 - Step 4: Simplify right side
194,916.21x = 40,465,662,840.05 - Step 5: Solve for x
x = 40,465,662,840.05/194,916.21 - Step 6: Final answer
x = 207,605.43
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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.