Finding the Fourth Proportional to 194,790.10, 291,983.55 and 105,855.70
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Solution
The fourth proportional to 194,790.10, 291,983.55 and 105,855.70 is: 158,673.99
Step by Step Solution
- Step 1: Write the proportion equation
194,790.10 : 291,983.55 = 105,855.70 : x - Step 2: Convert to fraction form
194,790.10/291,983.55 = 105,855.70/x - Step 3: Cross multiply
194,790.10x = 291,983.55 × 105,855.70 - Step 4: Simplify right side
194,790.10x = 30,908,123,073.74 - Step 5: Solve for x
x = 30,908,123,073.74/194,790.10 - Step 6: Final answer
x = 158,673.99
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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.