Finding the Fourth Proportional to 229,990.68, 343,237.19 and 214,762.55
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Solution
The fourth proportional to 229,990.68, 343,237.19 and 214,762.55 is: 320,510.78
Step by Step Solution
- Step 1: Write the proportion equation
229,990.68 : 343,237.19 = 214,762.55 : x - Step 2: Convert to fraction form
229,990.68/343,237.19 = 214,762.55/x - Step 3: Cross multiply
229,990.68x = 343,237.19 × 214,762.55 - Step 4: Simplify right side
229,990.68x = 73,714,491,389.24 - Step 5: Solve for x
x = 73,714,491,389.24/229,990.68 - Step 6: Final answer
x = 320,510.78
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.