Finding the Fourth Proportional to 307,729.91, 424,892.23 and 198,898.63
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Solution
The fourth proportional to 307,729.91, 424,892.23 and 198,898.63 is: 274,625.50
Step by Step Solution
- Step 1: Write the proportion equation
307,729.91 : 424,892.23 = 198,898.63 : x - Step 2: Convert to fraction form
307,729.91/424,892.23 = 198,898.63/x - Step 3: Cross multiply
307,729.91x = 424,892.23 × 198,898.63 - Step 4: Simplify right side
307,729.91x = 84,510,480,885.17 - Step 5: Solve for x
x = 84,510,480,885.17/307,729.91 - Step 6: Final answer
x = 274,625.50
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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.