Finding the Fourth Proportional to 308,267.28, 425,395.80 and 193,605.84
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Solution
The fourth proportional to 308,267.28, 425,395.80 and 193,605.84 is: 267,167.87
Step by Step Solution
- Step 1: Write the proportion equation
308,267.28 : 425,395.80 = 193,605.84 : x - Step 2: Convert to fraction form
308,267.28/425,395.80 = 193,605.84/x - Step 3: Cross multiply
308,267.28x = 425,395.80 × 193,605.84 - Step 4: Simplify right side
308,267.28x = 82,359,111,191.47 - Step 5: Solve for x
x = 82,359,111,191.47/308,267.28 - Step 6: Final answer
x = 267,167.87
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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.