Finding the Fourth Proportional to 205,743.24, 308,639.52 and 72,595.98
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Solution
The fourth proportional to 205,743.24, 308,639.52 and 72,595.98 is: 108,902.67
Step by Step Solution
- Step 1: Write the proportion equation
205,743.24 : 308,639.52 = 72,595.98 : x - Step 2: Convert to fraction form
205,743.24/308,639.52 = 72,595.98/x - Step 3: Cross multiply
205,743.24x = 308,639.52 × 72,595.98 - Step 4: Simplify right side
205,743.24x = 22,405,988,421.13 - Step 5: Solve for x
x = 22,405,988,421.13/205,743.24 - Step 6: Final answer
x = 108,902.67
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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.