Finding the Fourth Proportional to 206,779.61, 310,231.70 and 73,642.54
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Solution
The fourth proportional to 206,779.61, 310,231.70 and 73,642.54 is: 110,485.99
Step by Step Solution
- Step 1: Write the proportion equation
206,779.61 : 310,231.70 = 73,642.54 : x - Step 2: Convert to fraction form
206,779.61/310,231.70 = 73,642.54/x - Step 3: Cross multiply
206,779.61x = 310,231.70 × 73,642.54 - Step 4: Simplify right side
206,779.61x = 22,846,249,785.05 - Step 5: Solve for x
x = 22,846,249,785.05/206,779.61 - Step 6: Final answer
x = 110,485.99
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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.