Finding the Fourth Proportional to 229,415.23, 343,569.12 and 137,967.65
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Solution
The fourth proportional to 229,415.23, 343,569.12 and 137,967.65 is: 206,618.47
Step by Step Solution
- Step 1: Write the proportion equation
229,415.23 : 343,569.12 = 137,967.65 : x - Step 2: Convert to fraction form
229,415.23/343,569.12 = 137,967.65/x - Step 3: Cross multiply
229,415.23x = 343,569.12 × 137,967.65 - Step 4: Simplify right side
229,415.23x = 47,401,424,098.97 - Step 5: Solve for x
x = 47,401,424,098.97/229,415.23 - Step 6: Final answer
x = 206,618.47
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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.