Finding the Fourth Proportional to 258,428.37, 386,813.17 and 138,184.99
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Solution
The fourth proportional to 258,428.37, 386,813.17 and 138,184.99 is: 206,834.00
Step by Step Solution
- Step 1: Write the proportion equation
258,428.37 : 386,813.17 = 138,184.99 : x - Step 2: Convert to fraction form
258,428.37/386,813.17 = 138,184.99/x - Step 3: Cross multiply
258,428.37x = 386,813.17 × 138,184.99 - Step 4: Simplify right side
258,428.37x = 53,451,773,234.02 - Step 5: Solve for x
x = 53,451,773,234.02/258,428.37 - Step 6: Final answer
x = 206,834.00
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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.