Finding the Fourth Proportional to 198,395.79, 273,788.20 and 107,753.53
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Solution
The fourth proportional to 198,395.79, 273,788.20 and 107,753.53 is: 148,700.96
Step by Step Solution
- Step 1: Write the proportion equation
198,395.79 : 273,788.20 = 107,753.53 : x - Step 2: Convert to fraction form
198,395.79/273,788.20 = 107,753.53/x - Step 3: Cross multiply
198,395.79x = 273,788.20 × 107,753.53 - Step 4: Simplify right side
198,395.79x = 29,501,644,600.91 - Step 5: Solve for x
x = 29,501,644,600.91/198,395.79 - Step 6: Final answer
x = 148,700.96
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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.