Finding the Fourth Proportional to 197,988.61, 273,226.31 and 107,344.75
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Solution
The fourth proportional to 197,988.61, 273,226.31 and 107,344.75 is: 148,136.85
Step by Step Solution
- Step 1: Write the proportion equation
197,988.61 : 273,226.31 = 107,344.75 : x - Step 2: Convert to fraction form
197,988.61/273,226.31 = 107,344.75/x - Step 3: Cross multiply
197,988.61x = 273,226.31 × 107,344.75 - Step 4: Simplify right side
197,988.61x = 29,329,409,123.13 - Step 5: Solve for x
x = 29,329,409,123.13/197,988.61 - Step 6: Final answer
x = 148,136.85
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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.