Finding the Fourth Proportional to 430,939.98, 646,409.97 and 220,463.10
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Solution
The fourth proportional to 430,939.98, 646,409.97 and 220,463.10 is: 330,694.65
Step by Step Solution
- Step 1: Write the proportion equation
430,939.98 : 646,409.97 = 220,463.10 : x - Step 2: Convert to fraction form
430,939.98/646,409.97 = 220,463.10/x - Step 3: Cross multiply
430,939.98x = 646,409.97 × 220,463.10 - Step 4: Simplify right side
430,939.98x = 142,509,545,857.11 - Step 5: Solve for x
x = 142,509,545,857.11/430,939.98 - Step 6: Final answer
x = 330,694.65
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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.