Finding the Fourth Proportional to 198,779.99, 298,171.62 and 72,510.71
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Solution
The fourth proportional to 198,779.99, 298,171.62 and 72,510.71 is: 108,766.66
Step by Step Solution
- Step 1: Write the proportion equation
198,779.99 : 298,171.62 = 72,510.71 : x - Step 2: Convert to fraction form
198,779.99/298,171.62 = 72,510.71/x - Step 3: Cross multiply
198,779.99x = 298,171.62 × 72,510.71 - Step 4: Simplify right side
198,779.99x = 21,620,634,377.19 - Step 5: Solve for x
x = 21,620,634,377.19/198,779.99 - Step 6: Final answer
x = 108,766.66
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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.